Materiały źródłowe

• #1 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://www.uptodate.com/contents/schizotypal-personality-disorder-epidemiology-pathogenesis-clinical-manifestations-course-and-diagnosis/print

  Schizotypal personality disorder is under-recognized and understudied. […] The disorder is associated with significant disability, as well as a wide range of psychiatric comorbidities. […] This topic reviews the epidemiology, pathogenesis, clinical manifestations, course, and diagnosis of schizotypal personality disorder.

• #2

  https://step1.medbullets.com/evidence/24828284

  The study of schizotypal personality disorder (SPD) is important clinically, as it is understudied, challenging to treat, often under-recognized or misdiagnosed, and associated with significant functional impairment. […] In this review we discuss recent findings of SPD related to epidemiology and functional impairment, heritability and genetics, working memory and cognitive impairments, social-affective disturbances, and neurobiology. […] Additionally, we examine the challenges associated with treating patients with SPD, as well as clinical recommendations.

• #3 Schizotypal Personality Disorder – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK603720/

  The prevalence of schizotypal personality disorder is approximately 3.9% worldwide, with men at higher risk (4.2%) compared to women (3.7%). […] Quality measures of the prevalence of schizotypal personality disorder are lacking; therefore, these estimates are limited.

• #4 Schizotypal Personality Disorder – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK603720/

  The prevalence of schizotypal personality disorder is approximately 3.9% worldwide, with men at higher risk (4.2%) compared to women (3.7%). […] Quality measures of the prevalence of schizotypal personality disorder are lacking; therefore, these estimates are limited.

• #5 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  Schizotypal personality disorder is under-recognized and understudied. Its lifetime prevalence in the general United States population has been estimated at just under 4 percent. […] Not studied as extensively as many mental disorders, estimates of the prevalence of schizotypal personality disorder have ranged from less than 1 percent to nearly 4 percent: Based on face-to-face interviews of a nationally representative sample of 34,653 adults, the United States National Epidemiologic Survey of Alcohol and Related Disorders (NESARC) estimated the lifetime prevalence of schizotypal personality disorder to be 3.9 percent (4.2 percent in men and 3.7 percent women). […] Findings from the NESARC study suggest schizotypal personality disorder is more common among people with lower incomes and those never married, divorced, separated, or widowed.

• #6 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  Schizotypal personality disorder is under-recognized and understudied. Its lifetime prevalence in the general United States population has been estimated at just under 4 percent. […] Not studied as extensively as many mental disorders, estimates of the prevalence of schizotypal personality disorder have ranged from less than 1 percent to nearly 4 percent: Based on face-to-face interviews of a nationally representative sample of 34,653 adults, the United States National Epidemiologic Survey of Alcohol and Related Disorders (NESARC) estimated the lifetime prevalence of schizotypal personality disorder to be 3.9 percent (4.2 percent in men and 3.7 percent women). […] Findings from the NESARC study suggest schizotypal personality disorder is more common among people with lower incomes and those never married, divorced, separated, or widowed.

• #7 Schizotypal Personality Disorder | Abnormal Psychology

  https://courses.lumenlearning.com/wm-abnormalpsych/chapter/schizotypal-personality-disorder/

  Schizotypal personality disorder is characterized by severe social anxiety, thought disorder, paranoid ideation, transient psychosis, and often unconventional beliefs. […] The reported prevalence of schizotypal personality disorder in community studies ranges from 0.6% in a Norwegian sample to 4.6% in an American sample. A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%).

• #8 Schizotypal Personality Disorder – FindZebra

  https://www.findzebra.com/details/G2QNB6y-schizotypal-personality-disorder?q=

  Reported prevalence of STPD in community studies ranges from 0.6% in a Norwegian sample, to 4.6% in an American sample. […] A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%). […] It may be uncommon in clinical populations, with reported rates of up to 1.9%. […] Together with other cluster A personality disorders, it is also very common among homeless people who show up at drop-in centres, according to a 2008 New York study.

• #9 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #10 Schizotypal Personality Disorder: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23061-schizotypal-personality-disorder

  Schizotypal personality disorder is relatively rare. It affects approximately 3% to 5% of people in the United States. […] Many researchers consider schizotypal personality disorder to be one of the schizophrenia spectrum disorders, which also includes brief psychotic disorder, schizophreniform disorder, schizoaffective disorder and delusional disorder. […] Schizotypal personality disorder is a chronic condition that requires lifelong treatment. […] If left untreated, the prognosis (outlook) for schizotypal personality disorder (STPD) is generally poor. Its very common for people with STPD to have other mental health conditions, including: Social anxiety disorder, Depression, Obsessive-compulsive disorder, Substance use disorder. […] About 30% to 50% of people have major depressive disorder when theyre diagnosed with STPD.

• #11 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  The concept of schizotypal personality disorder (SPD) emerged from observations of personality characteristics common in relatives of schizophrenic patients. While often studied in family designs, few studies and none with genetic measures, have examined SPD in epidemiological samples. […] SPD was rare, with a prevalence of 0.044%, and had high levels of comorbidity with autism spectrum disorder (ASD), OCD, ADHD, and major depression (MD), and increased rates of being single, unemployed and in receipt of welfare. […] Our results not only support the designation of SPD as a schizophrenia spectrum disorder but also suggest potentially important etiologic links between SPD and ASD and, to a lesser extent, ADHD, OCD, and MD. […] Using the Swedish medical and genealogical registries, we examined the genetic epidemiology of SPD as diagnosed by ICD-10 criteria. Of the many findings reported here, eight are noteworthy and are discussed in turn. First, SPD, as diagnosed in a clinical setting by a physician, was a quite rare disorder, diagnosed in around 0.04% of the Swedish population with a nearly equal prevalence in males and females.

• #12 The genetic epidemiology of schizotypal personality disorder | Psychological Medicine | Cambridge Core

  https://www.cambridge.org/core/product/identifier/S0033291724000230/type/journal_article

  The concept of schizotypal personality disorder (SPD) emerged from observations of personality characteristics common in relatives of schizophrenic patients. While often studied in family designs, few studies and none with genetic measures, have examined SPD in epidemiological samples. […] SPD was rare, with a prevalence of 0.044%, and had high levels of comorbidity with autism spectrum disorder (ASD), OCD, ADHD, and major depression (MD), and increased rates of being single, unemployed and in receipt of welfare. […] Our results not only support the designation of SPD as a schizophrenia spectrum disorder but also suggest potentially important etiologic links between SPD and ASD and, to a lesser extent, ADHD, OCD, and MD. […] Using the Swedish medical and genealogical registries, we examined the genetic epidemiology of SPD as diagnosed by ICD-10 criteria. Of the many findings reported here, eight are noteworthy and are discussed in turn. First, SPD, as diagnosed in a clinical setting by a physician, was a quite rare disorder, diagnosed in around 0.04% of the Swedish population with a nearly equal prevalence in males and females.

• #13 9.2 Cluster A Personality Disorders – Fundamentals of Psychological Disorders

  https://opentext.wsu.edu/fundamentalsofpsychologicaldisorders/chapter/9-2-cluster-a-personality-disorders/

  Schizotypal personality disorder is characterized by a range of impairments in social and interpersonal relationships due to discomfort in relationships, along with odd cognitive and/or perceptual distortions and eccentric behaviors (APA, 2022). […] The prevalence rate for schizotypal personality disorder is 0.6% (APA, 2022). […] Schizotypal personality disorder does appear to be more commonly diagnosed in men (APA, 2022).

• #14 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  The lifetime prevalence of schizotypal personality disorder was also found to be slightly more common in men (4.2 percent) than women (3.7 percent). […] It is not known whether the differences in prevalence across geographic regions and studies reflect geographic variation in schizotypal personality disorder prevalence or methodological differences among studies. […] Commonly co-occurring in patients with schizotypal personality disorder are mood, anxiety, substance use and personality disorders. Major depression and bipolar I disorder are the most common mood disorders, which have been seen in 67.6 percent of schizotypal personality disorder patients. […] Schizotypal personality disorder is increasingly seen as a schizophrenia spectrum disorder, based on phenomenologic similarities with the more-severe schizophrenia, as well as findings from multiple lines of evidence – family/twin studies, psycho-physiologic and oculomotor abnormalities, neuropsychological and cognitive deficits, molecular genetics, and neuroimaging.

• #15 Schizotypal Personality Disorder – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK603720/

  The prevalence of schizotypal personality disorder is approximately 3.9% worldwide, with men at higher risk (4.2%) compared to women (3.7%). […] Quality measures of the prevalence of schizotypal personality disorder are lacking; therefore, these estimates are limited.

• #16 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  The lifetime prevalence of schizotypal personality disorder was also found to be slightly more common in men (4.2 percent) than women (3.7 percent). […] It is not known whether the differences in prevalence across geographic regions and studies reflect geographic variation in schizotypal personality disorder prevalence or methodological differences among studies. […] Commonly co-occurring in patients with schizotypal personality disorder are mood, anxiety, substance use and personality disorders. Major depression and bipolar I disorder are the most common mood disorders, which have been seen in 67.6 percent of schizotypal personality disorder patients. […] Schizotypal personality disorder is increasingly seen as a schizophrenia spectrum disorder, based on phenomenologic similarities with the more-severe schizophrenia, as well as findings from multiple lines of evidence – family/twin studies, psycho-physiologic and oculomotor abnormalities, neuropsychological and cognitive deficits, molecular genetics, and neuroimaging.

• #17 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #18 The genetic epidemiology of schizotypal personality disorder | Psychological Medicine | Cambridge Core

  https://www.cambridge.org/core/product/identifier/S0033291724000230/type/journal_article

  The concept of schizotypal personality disorder (SPD) emerged from observations of personality characteristics common in relatives of schizophrenic patients. While often studied in family designs, few studies and none with genetic measures, have examined SPD in epidemiological samples. […] SPD was rare, with a prevalence of 0.044%, and had high levels of comorbidity with autism spectrum disorder (ASD), OCD, ADHD, and major depression (MD), and increased rates of being single, unemployed and in receipt of welfare. […] Our results not only support the designation of SPD as a schizophrenia spectrum disorder but also suggest potentially important etiologic links between SPD and ASD and, to a lesser extent, ADHD, OCD, and MD. […] Using the Swedish medical and genealogical registries, we examined the genetic epidemiology of SPD as diagnosed by ICD-10 criteria. Of the many findings reported here, eight are noteworthy and are discussed in turn. First, SPD, as diagnosed in a clinical setting by a physician, was a quite rare disorder, diagnosed in around 0.04% of the Swedish population with a nearly equal prevalence in males and females.

• #19 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #20 Schizotypal personality disorder – Wikipedia

  https://en.wikipedia.org/wiki/Schizotypal_personality_disorder

  The reported prevalence of StPD in community studies ranges from 1.37% in a Norwegian sample, to 4.6% in an American sample. A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%). […] It may be uncommon in clinical populations, with reported rates of up to 1.9%. […] It has been estimated to be prevalent among up to 5.2% of the general population. […] Together with other cluster A personality disorders, it is also very common among homeless people who show up at drop-in centers, according to a 2008 New York study. […] Schizotypal disorder may be overdiagnosed in Russia and other post-Soviet states.

• #21 Schizotypal Personality Disorder – FindZebra

  https://www.findzebra.com/details/G2QNB6y-schizotypal-personality-disorder?q=

  Reported prevalence of STPD in community studies ranges from 0.6% in a Norwegian sample, to 4.6% in an American sample. […] A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%). […] It may be uncommon in clinical populations, with reported rates of up to 1.9%. […] Together with other cluster A personality disorders, it is also very common among homeless people who show up at drop-in centres, according to a 2008 New York study.

• #22 Schizotypal Personality Disorder | Abnormal Psychology

  https://courses.lumenlearning.com/atd-herkimer-abnormalpsych/chapter/schizotypal-personality-disorder/

  The prevalence of Schizotypal Personality Disorder is approximately 3% of the general population and is believed to occur slightly more often in males. […] Approximately less than 1% in an outpatient clinical sample. […] The course is rather stable, and only a small portion go on to develop Schizophrenia or another Psychotic Disorder. […] Schizotypal Personality Disorder is generally stable across an individual’s life. […] Schizotypal Personality Disorder appears to occur more frequently in individuals who have an immediate family member with schizophrenia.

• #23 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #24 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  Schizotypal personality disorder is under-recognized and understudied. Its lifetime prevalence in the general United States population has been estimated at just under 4 percent. […] Not studied as extensively as many mental disorders, estimates of the prevalence of schizotypal personality disorder have ranged from less than 1 percent to nearly 4 percent: Based on face-to-face interviews of a nationally representative sample of 34,653 adults, the United States National Epidemiologic Survey of Alcohol and Related Disorders (NESARC) estimated the lifetime prevalence of schizotypal personality disorder to be 3.9 percent (4.2 percent in men and 3.7 percent women). […] Findings from the NESARC study suggest schizotypal personality disorder is more common among people with lower incomes and those never married, divorced, separated, or widowed.

• #25 Exploring Statistics Schizotypal Personality Disorder (STPD)

  https://www.therecoveryvillage.com/mental-health/schizotypal-personality-disorder/schizotypal-statistics/

  Based on a survey of adults in the United States, its estimated that between 13.9% of the population will experience STPD in their lifetime. Prevalence of STPD is higher among people with lower socioeconomic status, people who are divorced or widowed and men. […] Schizotypal personality disorder can also frequently co-occur with other personality disorders, such as paranoid personality disorder. […] STPD may also co-occur with substance use; research has shown that STPD is associated with greater cannabis use, and has also been linked with alcohol, nicotine and illicit substances. […] Research has shown that having STPD was related to lower rates of employment, as well as a history of working at less cognitively complex jobs than those without STPD.

• #26 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  Schizotypal personality disorder is under-recognized and understudied. Its lifetime prevalence in the general United States population has been estimated at just under 4 percent. […] Not studied as extensively as many mental disorders, estimates of the prevalence of schizotypal personality disorder have ranged from less than 1 percent to nearly 4 percent: Based on face-to-face interviews of a nationally representative sample of 34,653 adults, the United States National Epidemiologic Survey of Alcohol and Related Disorders (NESARC) estimated the lifetime prevalence of schizotypal personality disorder to be 3.9 percent (4.2 percent in men and 3.7 percent women). […] Findings from the NESARC study suggest schizotypal personality disorder is more common among people with lower incomes and those never married, divorced, separated, or widowed.

• #27 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  The concept of schizotypal personality disorder (SPD) emerged from observations of personality characteristics common in relatives of schizophrenic patients. While often studied in family designs, few studies and none with genetic measures, have examined SPD in epidemiological samples. […] SPD was rare, with a prevalence of 0.044%, and had high levels of comorbidity with autism spectrum disorder (ASD), OCD, ADHD, and major depression (MD), and increased rates of being single, unemployed and in receipt of welfare. […] Our results not only support the designation of SPD as a schizophrenia spectrum disorder but also suggest potentially important etiologic links between SPD and ASD and, to a lesser extent, ADHD, OCD, and MD. […] Using the Swedish medical and genealogical registries, we examined the genetic epidemiology of SPD as diagnosed by ICD-10 criteria. Of the many findings reported here, eight are noteworthy and are discussed in turn. First, SPD, as diagnosed in a clinical setting by a physician, was a quite rare disorder, diagnosed in around 0.04% of the Swedish population with a nearly equal prevalence in males and females.

• #28 Exploring Statistics Schizotypal Personality Disorder (STPD)

  https://www.therecoveryvillage.com/mental-health/schizotypal-personality-disorder/schizotypal-statistics/

  Based on a survey of adults in the United States, its estimated that between 13.9% of the population will experience STPD in their lifetime. Prevalence of STPD is higher among people with lower socioeconomic status, people who are divorced or widowed and men. […] Schizotypal personality disorder can also frequently co-occur with other personality disorders, such as paranoid personality disorder. […] STPD may also co-occur with substance use; research has shown that STPD is associated with greater cannabis use, and has also been linked with alcohol, nicotine and illicit substances. […] Research has shown that having STPD was related to lower rates of employment, as well as a history of working at less cognitively complex jobs than those without STPD.

• #29 Schizotypal personality disorder – Wikipedia

  https://en.wikipedia.org/wiki/Schizotypal_personality_disorder

  The reported prevalence of StPD in community studies ranges from 1.37% in a Norwegian sample, to 4.6% in an American sample. A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%). […] It may be uncommon in clinical populations, with reported rates of up to 1.9%. […] It has been estimated to be prevalent among up to 5.2% of the general population. […] Together with other cluster A personality disorders, it is also very common among homeless people who show up at drop-in centers, according to a 2008 New York study. […] Schizotypal disorder may be overdiagnosed in Russia and other post-Soviet states.

• #30 Schizotypal Personality Disorder – FindZebra

  https://www.findzebra.com/details/G2QNB6y-schizotypal-personality-disorder?q=

  Reported prevalence of STPD in community studies ranges from 0.6% in a Norwegian sample, to 4.6% in an American sample. […] A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%). […] It may be uncommon in clinical populations, with reported rates of up to 1.9%. […] Together with other cluster A personality disorders, it is also very common among homeless people who show up at drop-in centres, according to a 2008 New York study.

• #31 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #32 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  The concept of schizotypal personality disorder (SPD) emerged from observations of personality characteristics common in relatives of schizophrenic patients. While often studied in family designs, few studies and none with genetic measures, have examined SPD in epidemiological samples. […] SPD was rare, with a prevalence of 0.044%, and had high levels of comorbidity with autism spectrum disorder (ASD), OCD, ADHD, and major depression (MD), and increased rates of being single, unemployed and in receipt of welfare. […] Our results not only support the designation of SPD as a schizophrenia spectrum disorder but also suggest potentially important etiologic links between SPD and ASD and, to a lesser extent, ADHD, OCD, and MD. […] Using the Swedish medical and genealogical registries, we examined the genetic epidemiology of SPD as diagnosed by ICD-10 criteria. Of the many findings reported here, eight are noteworthy and are discussed in turn. First, SPD, as diagnosed in a clinical setting by a physician, was a quite rare disorder, diagnosed in around 0.04% of the Swedish population with a nearly equal prevalence in males and females.

• #33 The genetic epidemiology of schizotypal personality disorder | Psychological Medicine | Cambridge Core

  https://www.cambridge.org/core/product/identifier/S0033291724000230/type/journal_article

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] The second highest genetic risk score observed in our SPD sample was for ASD. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #34 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  The lifetime prevalence of schizotypal personality disorder was also found to be slightly more common in men (4.2 percent) than women (3.7 percent). […] It is not known whether the differences in prevalence across geographic regions and studies reflect geographic variation in schizotypal personality disorder prevalence or methodological differences among studies. […] Commonly co-occurring in patients with schizotypal personality disorder are mood, anxiety, substance use and personality disorders. Major depression and bipolar I disorder are the most common mood disorders, which have been seen in 67.6 percent of schizotypal personality disorder patients. […] Schizotypal personality disorder is increasingly seen as a schizophrenia spectrum disorder, based on phenomenologic similarities with the more-severe schizophrenia, as well as findings from multiple lines of evidence – family/twin studies, psycho-physiologic and oculomotor abnormalities, neuropsychological and cognitive deficits, molecular genetics, and neuroimaging.

• #35 Personality Disorders: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/294307-overview

  Personality disorders affect 10-15% of the adult US population. The following are prevalences for specific personality disorders in the general population, across five studies from 2001 to 2010: […] Schizotypal personality disorder – 0.6-4.9%. […] Because the DSM-5 criteria are heavily bound to North American cultural definitions, epidemiologic data about personality disorders in other countries are notoriously unreliable. […] Schizotypal personality disorder – Patients may develop brief psychotic disorder, schizophreniform disorder, or delusional disorder; at the time of diagnosis, 30-50% of patients have concurrent major depression, and most have a history of at least 1 major depressive episode.

• #36 Schizotypal Personality Disorder: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23061-schizotypal-personality-disorder

  Schizotypal personality disorder is relatively rare. It affects approximately 3% to 5% of people in the United States. […] Many researchers consider schizotypal personality disorder to be one of the schizophrenia spectrum disorders, which also includes brief psychotic disorder, schizophreniform disorder, schizoaffective disorder and delusional disorder. […] Schizotypal personality disorder is a chronic condition that requires lifelong treatment. […] If left untreated, the prognosis (outlook) for schizotypal personality disorder (STPD) is generally poor. Its very common for people with STPD to have other mental health conditions, including: Social anxiety disorder, Depression, Obsessive-compulsive disorder, Substance use disorder. […] About 30% to 50% of people have major depressive disorder when theyre diagnosed with STPD.

• #37 Schizotypal Personality Disorder: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23061-schizotypal-personality-disorder

  Schizotypal personality disorder is relatively rare. It affects approximately 3% to 5% of people in the United States. […] Many researchers consider schizotypal personality disorder to be one of the schizophrenia spectrum disorders, which also includes brief psychotic disorder, schizophreniform disorder, schizoaffective disorder and delusional disorder. […] Schizotypal personality disorder is a chronic condition that requires lifelong treatment. […] If left untreated, the prognosis (outlook) for schizotypal personality disorder (STPD) is generally poor. Its very common for people with STPD to have other mental health conditions, including: Social anxiety disorder, Depression, Obsessive-compulsive disorder, Substance use disorder. […] About 30% to 50% of people have major depressive disorder when theyre diagnosed with STPD.

• #38 Exploring Statistics Schizotypal Personality Disorder (STPD)

  https://www.therecoveryvillage.com/mental-health/schizotypal-personality-disorder/schizotypal-statistics/

  Based on a survey of adults in the United States, its estimated that between 13.9% of the population will experience STPD in their lifetime. Prevalence of STPD is higher among people with lower socioeconomic status, people who are divorced or widowed and men. […] Schizotypal personality disorder can also frequently co-occur with other personality disorders, such as paranoid personality disorder. […] STPD may also co-occur with substance use; research has shown that STPD is associated with greater cannabis use, and has also been linked with alcohol, nicotine and illicit substances. […] Research has shown that having STPD was related to lower rates of employment, as well as a history of working at less cognitively complex jobs than those without STPD.

• #39 Schizotypal personality disorder – wikidoc

  https://www.wikidoc.org/index.php/Schizotypal_personality_disorder

  The prevalence of schizotypal personality disorder is 600 to 4,600 per 100,000 (0.6% to 4.6%) of the overall population.[2] […] There is a high rate of comorbidity with other personality disorders.

• #40 Exploring Statistics Schizotypal Personality Disorder (STPD)

  https://www.therecoveryvillage.com/mental-health/schizotypal-personality-disorder/schizotypal-statistics/

  Based on a survey of adults in the United States, its estimated that between 13.9% of the population will experience STPD in their lifetime. Prevalence of STPD is higher among people with lower socioeconomic status, people who are divorced or widowed and men. […] Schizotypal personality disorder can also frequently co-occur with other personality disorders, such as paranoid personality disorder. […] STPD may also co-occur with substance use; research has shown that STPD is associated with greater cannabis use, and has also been linked with alcohol, nicotine and illicit substances. […] Research has shown that having STPD was related to lower rates of employment, as well as a history of working at less cognitively complex jobs than those without STPD.

• #41 Schizotypal Personality Disorder: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23061-schizotypal-personality-disorder

  Schizotypal personality disorder is relatively rare. It affects approximately 3% to 5% of people in the United States. […] Many researchers consider schizotypal personality disorder to be one of the schizophrenia spectrum disorders, which also includes brief psychotic disorder, schizophreniform disorder, schizoaffective disorder and delusional disorder. […] Schizotypal personality disorder is a chronic condition that requires lifelong treatment. […] If left untreated, the prognosis (outlook) for schizotypal personality disorder (STPD) is generally poor. Its very common for people with STPD to have other mental health conditions, including: Social anxiety disorder, Depression, Obsessive-compulsive disorder, Substance use disorder. […] About 30% to 50% of people have major depressive disorder when theyre diagnosed with STPD.

• #42 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://gwern.net/doc/psychology/2020-04-21-uptodate-schizotypalpersonalitydisorder.html

  The lifetime prevalence of schizotypal personality disorder was also found to be slightly more common in men (4.2 percent) than women (3.7 percent). […] It is not known whether the differences in prevalence across geographic regions and studies reflect geographic variation in schizotypal personality disorder prevalence or methodological differences among studies. […] Commonly co-occurring in patients with schizotypal personality disorder are mood, anxiety, substance use and personality disorders. Major depression and bipolar I disorder are the most common mood disorders, which have been seen in 67.6 percent of schizotypal personality disorder patients. […] Schizotypal personality disorder is increasingly seen as a schizophrenia spectrum disorder, based on phenomenologic similarities with the more-severe schizophrenia, as well as findings from multiple lines of evidence – family/twin studies, psycho-physiologic and oculomotor abnormalities, neuropsychological and cognitive deficits, molecular genetics, and neuroimaging.

• #43 Schizoid Personality Disorder – PsychDB

  https://www.psychdb.com/personality/schizoid

  Prevalence rates are estimated to be between 3.1 to 4.9%. […] Increased prevalence among relatives with schizophrenia or schizotypal personality disorder. […] Higher risk in relatives of individuals with schizophrenia or schizotypal personality disorder.

• #44 12.6: Schizotypal Personality Disorder – Social Sci LibreTexts

  https://socialsci.libretexts.org/Bookshelves/Psychology/Psychological_Disorders/Abnormal_Psychology_2e_(Lumen)/12%3A_Personality_Disorders/12.06%3A_Schizotypal_Personality_Disorder

  Schizotypal personality disorder is widely understood to have a genetic connection with a schizophrenia spectrum disorder, mood disorders, and depression. Rates of schizotypal personality disorder are much higher in relatives of individuals with schizophrenia than in the relatives of people with other mental illnesses. […] The reported prevalence of schizotypal personality disorder in community studies ranges from 0.6% in a Norwegian sample to 4.6% in an American sample. A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%).

• #45 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #46 The genetic epidemiology of schizotypal personality disorder | Psychological Medicine | Cambridge Core

  https://www.cambridge.org/core/product/identifier/S0033291724000230/type/journal_article

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] The second highest genetic risk score observed in our SPD sample was for ASD. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #47 The genetic epidemiology of schizotypal personality disorder | Psychological Medicine | Cambridge Core

  https://www.cambridge.org/core/product/identifier/S0033291724000230/type/journal_article

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] The second highest genetic risk score observed in our SPD sample was for ASD. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #48 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  The concept of schizotypal personality disorder (SPD) emerged from observations of personality characteristics common in relatives of schizophrenic patients. While often studied in family designs, few studies and none with genetic measures, have examined SPD in epidemiological samples. […] SPD was rare, with a prevalence of 0.044%, and had high levels of comorbidity with autism spectrum disorder (ASD), OCD, ADHD, and major depression (MD), and increased rates of being single, unemployed and in receipt of welfare. […] Our results not only support the designation of SPD as a schizophrenia spectrum disorder but also suggest potentially important etiologic links between SPD and ASD and, to a lesser extent, ADHD, OCD, and MD. […] Using the Swedish medical and genealogical registries, we examined the genetic epidemiology of SPD as diagnosed by ICD-10 criteria. Of the many findings reported here, eight are noteworthy and are discussed in turn. First, SPD, as diagnosed in a clinical setting by a physician, was a quite rare disorder, diagnosed in around 0.04% of the Swedish population with a nearly equal prevalence in males and females.

• #49 Schizotypal Personality Disorder | Abnormal Psychology

  https://courses.lumenlearning.com/atd-herkimer-abnormalpsych/chapter/schizotypal-personality-disorder/

  The prevalence of Schizotypal Personality Disorder is approximately 3% of the general population and is believed to occur slightly more often in males. […] Approximately less than 1% in an outpatient clinical sample. […] The course is rather stable, and only a small portion go on to develop Schizophrenia or another Psychotic Disorder. […] Schizotypal Personality Disorder is generally stable across an individual’s life. […] Schizotypal Personality Disorder appears to occur more frequently in individuals who have an immediate family member with schizophrenia.

• #50 Schizotypal Personality Disorder | Abnormal Psychology

  https://courses.lumenlearning.com/atd-herkimer-abnormalpsych/chapter/schizotypal-personality-disorder/

  The prevalence of Schizotypal Personality Disorder is approximately 3% of the general population and is believed to occur slightly more often in males. […] Approximately less than 1% in an outpatient clinical sample. […] The course is rather stable, and only a small portion go on to develop Schizophrenia or another Psychotic Disorder. […] Schizotypal Personality Disorder is generally stable across an individual’s life. […] Schizotypal Personality Disorder appears to occur more frequently in individuals who have an immediate family member with schizophrenia.

• #51 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #52 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #53 Personality Disorders: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/294307-overview

  Personality disorders affect 10-15% of the adult US population. The following are prevalences for specific personality disorders in the general population, across five studies from 2001 to 2010: […] Schizotypal personality disorder – 0.6-4.9%. […] Because the DSM-5 criteria are heavily bound to North American cultural definitions, epidemiologic data about personality disorders in other countries are notoriously unreliable. […] Schizotypal personality disorder – Patients may develop brief psychotic disorder, schizophreniform disorder, or delusional disorder; at the time of diagnosis, 30-50% of patients have concurrent major depression, and most have a history of at least 1 major depressive episode.

• #54 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #55 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #56 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #57 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #58 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #59 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #60 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #61 The genetic epidemiology of schizotypal personality disorder

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11413339/

  Second, consistent with prior reports, we found that cases of SPD had, as a group, high levels of psychiatric comorbidity that were particularly prominent for ASD, OCD, ADHD, and MD. […] Fourth, as diagnosed by Swedish clinicians, individuals with SPD are at a substantially elevated genetic risk for schizophrenia. […] Approximately 15% progress to schizophrenia over an 8-year follow-up. Predisposing factors include male sex, genetic risk for schizophrenia, and SPD diagnoses from an in-patient setting. Protective factors include comorbidity with ASD, MD, and ASD.

• #62 Schizoid Personality Disorder | Treatment & Management | Point of Care

  https://www.statpearls.com/point-of-care/27053

  Schizoid personality disorder is one of the least prevalent personality disorders, with prevalence estimates ranging from 0.0% to 4.9% in various epidemiological studies, as noted in Chapter 6 of The American Psychiatric Publishing Textbook of Personality Disorders: DSM-5 ed. (2014). […] A study published in 2005 using DSM-IV criteria estimated that the prevalence of schizoid personality disorder among psychiatric outpatients was 1.4%. […] Notably, it remains unclear whether schizoid personality disorder or its traits are more common in men. Schizoid personality disorder is associated with significant disability in at least one major area of functioning and a poor quality of life.

• #63 Exploring Statistics Schizotypal Personality Disorder (STPD)

  https://www.therecoveryvillage.com/mental-health/schizotypal-personality-disorder/schizotypal-statistics/

  Based on a survey of adults in the United States, its estimated that between 13.9% of the population will experience STPD in their lifetime. Prevalence of STPD is higher among people with lower socioeconomic status, people who are divorced or widowed and men. […] Schizotypal personality disorder can also frequently co-occur with other personality disorders, such as paranoid personality disorder. […] STPD may also co-occur with substance use; research has shown that STPD is associated with greater cannabis use, and has also been linked with alcohol, nicotine and illicit substances. […] Research has shown that having STPD was related to lower rates of employment, as well as a history of working at less cognitively complex jobs than those without STPD.

• #64 Exploring Statistics Schizotypal Personality Disorder (STPD)

  https://www.therecoveryvillage.com/mental-health/schizotypal-personality-disorder/schizotypal-statistics/

  Based on a survey of adults in the United States, its estimated that between 13.9% of the population will experience STPD in their lifetime. Prevalence of STPD is higher among people with lower socioeconomic status, people who are divorced or widowed and men. […] Schizotypal personality disorder can also frequently co-occur with other personality disorders, such as paranoid personality disorder. […] STPD may also co-occur with substance use; research has shown that STPD is associated with greater cannabis use, and has also been linked with alcohol, nicotine and illicit substances. […] Research has shown that having STPD was related to lower rates of employment, as well as a history of working at less cognitively complex jobs than those without STPD.

• #65 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://www.uptodate.com/contents/schizotypal-personality-disorder-epidemiology-pathogenesis-clinical-manifestations-course-and-diagnosis/print

  Schizotypal personality disorder is under-recognized and understudied. […] The disorder is associated with significant disability, as well as a wide range of psychiatric comorbidities. […] This topic reviews the epidemiology, pathogenesis, clinical manifestations, course, and diagnosis of schizotypal personality disorder.

• #66 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #67 Schizotypal personality disorder: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis – UpToDate

  https://www.uptodate.com/contents/schizotypal-personality-disorder-epidemiology-pathogenesis-clinical-manifestations-course-and-diagnosis/print

  Schizotypal personality disorder is under-recognized and understudied. […] The disorder is associated with significant disability, as well as a wide range of psychiatric comorbidities. […] This topic reviews the epidemiology, pathogenesis, clinical manifestations, course, and diagnosis of schizotypal personality disorder.

• #68 Day # 131: Schizotypal Personality Disorder

  https://www.bulletpsych.com/post/day-131-schizotypal-personality-disorder

  Prevalence is estimated to be 3-5% of the general population, however this is difficult to study since those with the disorder rarely seek treatment and it is uncommon in clinical settings. […] The ratio of men to woman is unknown, however DSM-5 suggest the disorder may be slightly more common in males. There is also an association in females with fragile x syndrome. […] Relatives of patients with schizophrenia show a higher incidence of schizotypal PD than among control participants, especially when schizotypal features were not associated with comorbid mood symptoms. There is also a higher incidence among monozygotic twins than among dizygotic twins (33 percent vs. 4 percent in one study). […] Other factors that may increase risk include prenatal insults such as influenza exposure, childhood trauma, chronic stress, and certain genetic factors (COMT Val158Met polymorphism).

• #69 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #70 Schizotypal personality disorder – Wikipedia

  https://en.wikipedia.org/wiki/Schizotypal_personality_disorder

  The reported prevalence of StPD in community studies ranges from 1.37% in a Norwegian sample, to 4.6% in an American sample. A large American study found a lifetime prevalence of 3.9%, with somewhat higher rates among men (4.2%) than women (3.7%). […] It may be uncommon in clinical populations, with reported rates of up to 1.9%. […] It has been estimated to be prevalent among up to 5.2% of the general population. […] Together with other cluster A personality disorders, it is also very common among homeless people who show up at drop-in centers, according to a 2008 New York study. […] Schizotypal disorder may be overdiagnosed in Russia and other post-Soviet states.

• #71 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #72 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #73 Diagnosis and treatment of schizotypal personality disorder: evidence from a systematic review | Schizophrenia

  https://www.nature.com/articles/s41537-018-0062-8

  The prevalence of STPD has been described as ranging from 0.6% in a Norwegian sample to 4.6% in an American sample. Men (4.2%) are more often affected than women (3.7%). Common differential diagnoses are other PDs such as the borderline personality disorder (BPD), attention-deficit disorder (inattentive type), social anxiety disorder, autism-spectrum disorder, and dysthymia. Comorbidities can complicate the disease course and treatment responses, and several studies focus on interventions for patients with comorbid obsessive-compulsive disorder (OCD) and BPD. […] Despite these research efforts, evidence-based recommendations are still lacking for the diagnosis and treatment of STPD. National and international treatment guidelines for schizophrenia spectrum disorders (e.g., from the APA, the National Institute for Health and Care Excellence and World Federation of Societies of Biological Psychiatry (WFSBP)) do not discuss this topic, and specific guidelines for personality disorders pay only little attention to STPD. […] The conversion rates from STPD to schizophrenia spectrum disorders vary between 20 and 40%, depending on the follow-up interval.

• #74 Schizotypal Personality Disorder (STPD) – Psychiatric Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/psychiatric-disorders/personality-disorders/schizotypal-personality-disorder-stpd

  The estimated median prevalence is 0.6% but may be as high as 3.9% (1, 2). This disorder may be slightly more common among men. […] Schizotypal personality disorder is commonly treated with medications. Atypical antipsychotics lessen anxiety and psychotic-like symptoms (1); antidepressants may also help lessen social anxiety in patients with schizotypal personality disorder. […] In schizotypal personality disorder, cognitive experiences reflect a more florid departure from reality (eg, ideas of reference, paranoid ideas, bodily illusions, magical thinking) and a greater disorganization of thought and speech than occurs in other personality disorders.

• #75 Schizotypal Personality Disorder (STPD) – Psychiatric Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/psychiatric-disorders/personality-disorders/schizotypal-personality-disorder-stpd

  The estimated median prevalence is 0.6% but may be as high as 3.9% (1, 2). This disorder may be slightly more common among men. […] Schizotypal personality disorder is commonly treated with medications. Atypical antipsychotics lessen anxiety and psychotic-like symptoms (1); antidepressants may also help lessen social anxiety in patients with schizotypal personality disorder. […] In schizotypal personality disorder, cognitive experiences reflect a more florid departure from reality (eg, ideas of reference, paranoid ideas, bodily illusions, magical thinking) and a greater disorganization of thought and speech than occurs in other personality disorders.

• #76 Schizotypal Personality Disorder: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23061-schizotypal-personality-disorder

  Schizotypal personality disorder is relatively rare. It affects approximately 3% to 5% of people in the United States. […] Many researchers consider schizotypal personality disorder to be one of the schizophrenia spectrum disorders, which also includes brief psychotic disorder, schizophreniform disorder, schizoaffective disorder and delusional disorder. […] Schizotypal personality disorder is a chronic condition that requires lifelong treatment. […] If left untreated, the prognosis (outlook) for schizotypal personality disorder (STPD) is generally poor. Its very common for people with STPD to have other mental health conditions, including: Social anxiety disorder, Depression, Obsessive-compulsive disorder, Substance use disorder. […] About 30% to 50% of people have major depressive disorder when theyre diagnosed with STPD.

• #77 Schizotypal Personality Disorder: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23061-schizotypal-personality-disorder

  Schizotypal personality disorder is relatively rare. It affects approximately 3% to 5% of people in the United States. […] Many researchers consider schizotypal personality disorder to be one of the schizophrenia spectrum disorders, which also includes brief psychotic disorder, schizophreniform disorder, schizoaffective disorder and delusional disorder. […] Schizotypal personality disorder is a chronic condition that requires lifelong treatment. […] If left untreated, the prognosis (outlook) for schizotypal personality disorder (STPD) is generally poor. Its very common for people with STPD to have other mental health conditions, including: Social anxiety disorder, Depression, Obsessive-compulsive disorder, Substance use disorder. […] About 30% to 50% of people have major depressive disorder when theyre diagnosed with STPD.

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