title: Evaluation of the DSM-IV and ICD-10 criteria for depressive disorders in a community population in Japan using item response theory.
abstract: The DSM-IV and ICD-10 are both operational diagnostic systems that classify known psychological disorders according to the number of criteria symptoms. Certain discrepancies between the criteria exist and may lead to some inconsistencies in psychiatric research. The purpose of this study was to investigate these differences in the assessment of depression with item response theory (IRT) analyses. The World Mental Health-Japan (WMHJ) Survey is an epidemiological survey of the general population in Japan. We analyzed data from the WMHJ completed by 353 respondents who had either depressive mood or diminished interest. A two-parameter logistic model was used to evaluate the characteristics of the symptoms of the DSM-IV and ICD-10. IRT analyses revealed that the symptoms about psychomotor activity, worthlessness and self-reproach were more informative and suggestive of greater severity, while the symptoms about dietary habits were less informative. IRT analyses also revealed that the ICD-10 seems more sensitive to the mild range of the depression spectrum compared to the DSM-IV. Although there were some variations in severity among respondents, most of the respondents diagnosed with a severe or moderate depressive episode according to the ICD-10 were also diagnosed with a major depressive episode according to the DSM-IV.
authors.affiliation: Clinical Research Center, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan. saito-mr@ncchd.go.jp
authors.forename: Mari
authors.initials: M
authors.lastname: Saito
authors.forename: Noboru
authors.initials: N
authors.lastname: Iwata
authors.forename: Norito
authors.initials: N
authors.lastname: Kawakami
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Matsuyama
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Ono
authors.forename: Yoshibumi
authors.initials: Y
authors.lastname: Nakane
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Hisateru
authors.initials: H
authors.lastname: Tachimori
authors.forename: Hidenori
authors.initials: H
authors.lastname: Uda
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Nakane
authors.forename: Makoto
authors.initials: M
authors.lastname: Watanabe
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Naganuma
authors.forename: Toshiaki A
authors.initials: TA
authors.lastname: Furukawa
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Hata
authors.forename: Masayo
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Yuko
authors.initials: Y
authors.lastname: Miyake
authors.forename: Tadashi
authors.initials: T
authors.lastname: Takeshima
authors.forename: Takehiko
authors.initials: T
authors.lastname: Kikkawa
mesh_terms: D000328:Adult; D000339:Affect; D000368:Aged; D000369:Aged, 80 and over; D001066:Appetite; D001835:Body Weight; D003866:Depressive Disorder / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology*; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D038801:International Classification of Diseases; D007564:Japan / Q000453:epidemiology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D008960:Models, Psychological; D011159:Population Surveillance; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D012720:Severity of Illness Index