Ito Masaya, Bentley Kate H, Oe Yuki, Nakajima Shun, Fujisato Hiroko, Kato Noriko, Miyamae Mitsuhiro, Kanie Ayako, Horikoshi Masaru, Barlow David H
National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, Kodaira, Japan.
Boston University, Boston, Massachusetts, United States of America.
PLoS One. 2015 Apr 13;10(4):e0122969. doi: 10.1371/journal.pone.0122969. eCollection 2015.
The Overall Depression Severity and Impairment Scale (ODSIS) is a brief, five-item measure for assessing the frequency and intensity of depressive symptoms, as well as functional impairments in pleasurable activities, work or school, and interpersonal relationships due to depression. Although this scale is expected to be useful in various psychiatric and mental health settings, the reliability, validity, and interpretability have not yet been fully examined. This study was designed to examine the reliability, factorial, convergent, and discriminant validity of a Japanese version of the ODSIS, as well as its ability to distinguish between individuals with and without a major depressive disorder diagnosis.
From a pool of registrants at an internet survey company, 2830 non-clinical and clinical participants were selected randomly (619 with major depressive disorder, 619 with panic disorder, 576 with social anxiety disorder, 645 with obsessive-compulsive disorder, and 371 non-clinical panelists). Participants were asked to respond to the ODSIS and conventional measures of depression, functional impairment, anxiety, neuroticism, satisfaction with life, and emotion regulation.
Exploratory and confirmatory factor analysis of three split subsamples indicated the unidimensional factor structure of ODSIS. Multi-group confirmatory factor analysis showed invariance of factor loadings between non-clinical and clinical subsamples. The ODSIS also showed excellent internal consistency and test-retest intraclass correlation coefficients. Convergence and discriminance of the ODSIS with various measures were in line with our expectations. Receiver operating characteristic curve analyses showed that the ODSIS was able to detect a major depressive syndrome accurately.
This study supports the reliability and validity of ODSIS in a non-western population, which can be interpreted as demonstrating cross-cultural validity.
总体抑郁严重程度与功能损害量表（ODSIS）是一种简短的五项量表，用于评估抑郁症状的频率和强度，以及因抑郁导致的愉悦活动、工作或学习以及人际关系方面的功能损害。尽管该量表预计在各种精神科和心理健康环境中都有用，但尚未对其信度、效度和可解释性进行充分检验。本研究旨在检验ODSIS日语版的信度、因子效度、聚合效度和区分效度，以及其区分有和无重度抑郁症诊断个体的能力。
从一家互联网调查公司的注册者中随机选取2830名非临床和临床参与者（619名重度抑郁症患者、619名惊恐障碍患者、576名社交焦虑障碍患者、645名强迫症患者和371名非临床小组成员）。参与者被要求对ODSIS以及抑郁、功能损害、焦虑、神经质、生活满意度和情绪调节的传统测量方法做出回应。
对三个分割子样本的探索性和验证性因素分析表明ODSIS具有单维因素结构。多组验证性因素分析显示非临床和临床子样本之间因素负荷的不变性。ODSIS还显示出优异的内部一致性和重测组内相关系数。ODSIS与各种测量方法的聚合效度和区分效度符合我们的预期。受试者工作特征曲线分析表明ODSIS能够准确检测出重度抑郁综合征。
本研究支持ODSIS在非西方人群中的信度和效度，这可被解释为证明了其跨文化效度。
