Factorial validity and invariance of the Patient Health Questionnaire (PHQ)-9 among clinical and non-clinical populations.
Factorial validity and invariance of the Patient Health Questionnaire (PHQ)-9 among clinical and non-clinical populations.
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DOI：
10.1371/journal.pone.0199235
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发表时间：
2018
期刊：
影响因子：
3.7
通讯作者：
Horikoshi M
中科院分区：
文献类型：
--
作者：
Doi S;Ito M;Takebayashi Y;Muramatsu K;Horikoshi M
患者健康问卷-9(PHQ-9)通常用于筛查抑郁障碍和监测抑郁症状。然而，关于它的因素结构(即它是否具有一维、二维或双因素结构)，人们的研究结果褒贬不一。此外，它在非临床人群和临床人群之间的测量不变性，以及在重度抑郁障碍(MDD)和MDD合并焦虑障碍(AD)患者之间的测量不变性尚不清楚。患有MDD(n=406)、MDD伴AD(n=636)和无精神障碍(非临床人群；n=1,163)的日本成年人在互联网上回答了这份问卷。验证性因素分析表明，双因素模型比一维和二维因素模型具有更好的拟合效果。多组验证性因素分析结果显示，非临床组与单纯MDD组之间、MDD组与AD组之间的标量不变性。综上所述，非临床组、单纯MDD组和MDD伴AD组均支持双因素双因素模型。两组之间支持标量测量不变性模型，这表明组间的总分或分量表得分具有可比性。
The Patient Health Questionnaire-9 (PHQ-9) is commonly used to screen for depressive disorder and for monitoring depressive symptoms. However, there are mixed findings regarding its factor structure (i.e., whether it has a unidimensional, two-dimensional, or bi-factor structure). Furthermore, its measurement invariance between non-clinical and clinical populations and that between patients with major depressive disorder (MDD) and MDD with comorbid anxiety disorder (AD) is unknown. Japanese adults with MDD (n = 406), MDD with AD (n = 636), and no psychiatric disorders (non-clinical population; n = 1,163) answered this questionnaire on the Internet. Confirmatory factor analyses showed that the bi-factor model had a better fit than the unidimensional and two-dimensional factor models did. The results of a multi-group confirmatory factor analysis indicated scalar invariance between the non-clinical and only MDD groups, and that between the only MDD and MDD with AD groups. In conclusion, the bi-factor model with two specific factors was supported among the non-clinical, only MDD, and MDD with AD groups. The scalar measurement invariance model was supported between the groups, which indicated the total or sub-scale scores were comparable between groups.
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