Tomitaka Shinichiro, Kawasaki Yohei, Ide Kazuki, Akutagawa Maiko, Yamada Hiroshi, Yutaka Ono, Furukawa Toshiaki A
Department of Mental Health, Panasonic Health Center, Tokyo, Japan.
Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan.
Front Psychiatry. 2017 Nov 24;8:251. doi: 10.3389/fpsyt.2017.00251. eCollection 2017.
Recent studies have shown that item responses on the Center for Epidemiologic Studies Depression Scale (CES-D) and Kessler Screening Scale for Psychological Distress (K6) exhibit the same characteristic item response patterns among the general population. However, the distributional patterns of responses on the Patient Health Questionnaire-8 (PHQ-8) among the general population have not been adequately studied. Thus, we conducted a pattern analysis of PHQ-8 item responses among US adults. Data (18,446 individuals) were obtained from the 2015 Behavioral Risk Factor Surveillance Survey (BRFSS). Item responses on the BRFSS version of the PHQ-8 were scored using the number of days response set and then converted to the original 4-point scale. The patterns of item responses were analyzed through graphical analysis. Lines of item responses scored using the number of days response set showed the same pattern among the eight items, characterized by crossing at a single point between "0 days" and "1 day," and parallel fluctuation from "1 day" to "14 days" on a semi-logarithmic scale. Lines of item responses converted to the 4-point scale also showed the same characteristic pattern among the eight items. The present results demonstrate that the item responses on the PHQ-8 show the same characteristic patterns among items, consistent with the CES-D and the K6.
最近的研究表明，在一般人群中，流行病学研究中心抑郁量表（CES-D）和凯斯勒心理困扰筛查量表（K6）的项目反应呈现出相同的特征性项目反应模式。然而，一般人群中患者健康问卷-8（PHQ-8）的反应分布模式尚未得到充分研究。因此，我们对美国成年人的PHQ-8项目反应进行了模式分析。数据（18446人）来自2015年行为危险因素监测调查（BRFSS）。BRFSS版本的PHQ-8的项目反应使用天数反应集进行评分，然后转换为原始的4分制。通过图形分析对项目反应模式进行了分析。使用天数反应集评分的项目反应线在八个项目中显示出相同的模式，其特征是在“0天”和“1天”之间的单个点处交叉，并在半对数尺度上从“1天”到“14天”平行波动。转换为4分制的项目反应线在八个项目中也显示出相同的特征模式。目前的结果表明，PHQ-8的项目反应在各项目中呈现出相同的特征模式，与CES-D和K6一致。
