Prevalence and Correlates of Major Mental Disorders among Korean Adults : A 2006 National Epidemiologic Survey / 신경정신의학

OBJECTIVES : The aims of this study are to estimate the prevalence of the DSM-IV psychiatric disorders in the Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI), and to compare those with previous studies. METHODS : The Korean Epidemiologic Catchment Area study Replication (KECA-R) was conducted between August 2006 and April 2007. The sampling of the subjects was carried out across 12 catchment areas. A multistage, cluster sampling design was adopted. The target population included all eligible residents aged 18 to 64 years. Face-to-face interviews were conducted with the Korean version of Composite International Diagnostic Interview (K-CIDI) based on the DSM-IV (N=6,510, response rate=81.7%). RESULTS : A total of 6,510 participants completed the interview. The lifetime and 12-month prevalence rates for all types of DSM-IV disorders were 30.0% and 17.3%, respectively. Those of specific disorders were as follows : 1) alcohol use disorder, 16.2% and 5.6% ; 2) nictotine use disorder, 9.0% and 6.0%;3) specific phobia, 3.8% and 3.4%;4) major depressive disorder, 5.6% and 2.5% ; and 5) generalized anxiety disorder, 1.6% and 0.8%. Data relating to nicotine and alcohol use disorder revealed a very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among females than males. CONCLUSION : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in the distribution of psychiatric disorders across the country and times were observed.

Korean Epidemiologic Catchment Area(KECA) Study for Psychiatric Disorderscc: Prevalence of Specific Psychiatric Disorders / 신경정신의학

OBJECTIVES: This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). METHODS: Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November 30, 2001. RESULTS: Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major depressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. CONCLUSION: The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

Prevalence Rates of Major Mental Disorders in Mental Health Related Facilities : Nationwide 20 Institutions Study / 신경정신의학

OBJECTIVES: One of the objectives of this study is to estimate the prevalence rates of psychiatric diagnoses in the combined populations of psychiatric hospitals, psychiatric nursing facilities and homeless asylums using the Korean version of the Composite International Diagnostic Interview (K-CIDI), which is a comprehensive and fully standardized interview schedule to assess psychiatric disorders for diagnosis. The Other objective is to compare with previously studied prevalence rates of psychiatric diagnoses using the results of this study. METHODS : The study subjects, aged from 18 to 64 years, were randomly selected from 64,582 institutionalized population of psychiatric hospitals, psychiatric nursing facilities and homeless asylums as of 30, June, 2001. Twelve trained interviewers administered the K-CIDI to the selected respondents. A total of 1,875 respondents (male 1,194, female 681) completed the interview. RESULTS : The lifetime and one year prevalences of any diagnosis excluding nicotine dependence. withdrawal, anxiety disorder, eating disorder, somatoform disorder were 88.2% (male 88.1%, female 88.3%), and 65.8% (male 62.7%, female 73.7%), respectively. The lifetime and one year prevalences of schizophrenia and other psychotic disorders were 78.5% (male 75.3%, female 83.7%), and 56.8% (male 51.9%, female 64.8%), respectively. The lifetime and one year prevalences of alcohol use disorder (dependence/abuse) were 26.7% (male 37.9%, female 8.3%), and 8.7% (male 12.8%, female 2.1%), respectively. The lifetime and one year prevalences of mood disorder were 18.1% (male 13.5%, female 25.8%), and 10.4% (male 7.2%, female 16.9%), respectively. The lifetime and one year prevalences of schizophrenia and other psychotic disorders were comparable with the 2001 community survey by 1.19% to 1.32%, and 0.51% to 0.61%, respectively. The lifetime and one year prevalences of schizophrenia were also comparable by 0.16% to 0.28%, and 0.16% to 0.25%, respectively. There were no significant changes of prevalence rates when correction were applied to other psychiatric diagnosis. CONCLUSION : The results of this study could be used for evaluating the distribution of psychiatric diagnoses in mental health related facilities and for planning mental health policies.

Prevalence of Psychiatric Disorders in a Community Population / 신경정신의학

OBJECTIVE: This study aims to access the distributions of psychiatric disorders in a community population using the Korean version of Composite International Diagnostic Interview(K-CIDI). METHODS: CIDI is a comprehensive, fully standardized interview suitable for epidemiologic study. Subjects were selected by taking two-stage, cluster samples of 1,763 adult household residents, 18 to 64 years of age, in Namyangjusi, Kyunggido. Ten trained interviewers administered the K-CIDI to the selected respondents, from July 1 to August 30, 1999. RESULTS: Total 1,060 respondents completed the interview. Lifetime prevalences and male/female ratio of lifetime prevalences of alcohol use disorders(abuse/dependence), nicotine dependence, specific phobia, major depressive disorder, and posttraumatic stress disorder were 15.6%(6.8%/8.9%) and 5.8 (12.3/3.7), 5.7% and 5.5, 3.9% and 0.3, 3.3% and 0.4, and 1.5% and 0.6, respectively. One-year prevalences and male/female ratio of one-year prevalences of alcohol use disorders, nicotine dependence, specific phobia, major depressive disorder were 7.5% and 6.8, 3.8% and 5.3, 3.4% and 0.4, and 2.0% and 0.3, respectively. CONCLUSION: Compared with previous Korean results, the prevalence of alcohol use disorder was decreased and the prevalence of major depressive disorder showed little change. The prevalence of alcohol use disorder was comparable with the results of other countries, whereas mood disorders and anxiety disorders were less frequent than in other countries. Remarkable differences of distributions of psychiatric disorders across the areas and times were observed. Systematic cross-cultural comparison study is needed to overcome the methodological problems and to explore the cause of differences of distributions of psychiatric disorders.