Lifetime Prevalence and Correlates of Schizophrenia-Spectrum, Affective, and Other Non-affective Psychotic Disorders in the Chinese Adult Population

Wing Chung Chang*, Corine Sau Man Wong, Eric Yu Hai Chen, Linda Chiu Wa Lam, Wai Chi Chan, Roger Man Kin Ng, Se Fong Hung, Eric Fuk Chi Cheung, Pak Chung Sham, Helen Fung Kum Chiu, Ming Lam, Edwin Ho Ming Lee, Tin Po Chiang, Lap Kei Chan, Gary Kar Wai Lau, Allen Ting Chun Lee, Grace Tak Yu Leung, Joey Shuk Yan Leung, Joseph Tak Fai Lau, Jim van OsGlyn Lewis, Paul Bebbington

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

41 Citations (Web of Science)

Abstract

Lifetime prevalence of psychotic disorders varies widely across studies. Epidemiological surveys have rarely examined prevalences of specific psychotic disorders other than schizophrenia, and the majority used a single-phase design without employing clinical reappraisal interview for diagnostic verification. The current study investigated lifetime prevalence, correlates and service utilization of schizophrenia-spectrum, affective, and other non-affective psychotic disorders in a representative sample of community-dwelling Chinese adult population aged 16-75 years (N = 5719) based on a territory-wide, population-based household survey for mental disorders in Hong Kong. The survey adopted a 2-phase design comprising first-phase psychosis screening and second-phase diagnostic verification incorporating clinical information from psychiatrist-administered semi-structured interview and medical record review to ascertain DSM-IV lifetime diagnosis for psychotic disorders. Data on sociodemographics, psychosocial characteristics and service utilization were collected. Our results showed that lifetime prevalence was 2.47% for psychotic disorder overall, 1.25% for schizophrenia, 0.15% for delusional disorder, 0.38% for psychotic disorder not otherwise specified, 0.31% for bipolar disorder with psychosis, and 0.33% for depressive disorder with psychosis. Schizophrenia-spectrum disorder was associated with family history of psychosis, cigarette smoking and variables indicating socioeconomic disadvantage. Victimization experiences were significantly related to affective psychoses and other non-affective psychoses. Around 80% of participants with any psychotic disorder sought some kind of professional help for mental health problems in the past year. Using comprehensive diagnostic assessment involving interview and record data, our results indicate that approximately 2.5% of Chinese adult population had lifetime psychotic disorder which represents a major public health concern.

Original languageEnglish
Pages (from-to)1280-1290
Number of pages11
JournalSchizophrenia Bulletin
Volume43
Issue number6
DOIs
Publication statusPublished - Nov 2017

Keywords

  • epidemiology
  • population surveys
  • lifetime prevalence
  • schizophrenia
  • affective psychoses
  • NATIONAL-COMORBIDITY-SURVEY
  • PSYCHIATRIC-DISORDERS
  • HONG-KONG
  • 12-MONTH PREVALENCE
  • FOLLOW-UP
  • GENERAL-POPULATION
  • MENTAL-DISORDERS
  • GLOBAL BURDEN
  • RISK-FACTORS
  • COMMUNITY

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