Song Claire, Havaei Farinaz, Dahinten Susan
University of British Columbia, Vancouver, Canada
University of British Columbia, Vancouver, Canada.
J Nurs Meas. 2024 May 23. doi: 10.1891/JNM-2023-0050.
The patient health questionnaire 9 item (PHQ-9) is a widely used self-reported measure for screening depressive symptoms. This study aims to examine measurement invariance and psychometric properties of the PHQ-9 for screening depressive symptoms in nurses across different nursing roles, gender, and workplace sector. The study is a secondary analysis of pre-COVID and COVID-19 survey data from 4,176 nurses and 3,238 nurses in British Columbia. Data from the PHQ-9 tested the assumption of unidimensionality, reliability, and presence of differential item functioning (DIF). The PHQ-9 showed excellent internal consistency ( = .9) and a unidimensional factor structure. PHQ-9 items were free of DIF across nursing roles, gender, and workplace sector. This study supported the valid use of the PHQ-9 as a screening tool for depressive symptoms among nurses.
患者健康问卷9项版（PHQ - 9）是一种广泛使用的用于筛查抑郁症状的自我报告测量工具。本研究旨在检验PHQ - 9在不同护理角色、性别和工作场所部门的护士中筛查抑郁症状时的测量不变性和心理测量特性。该研究是对不列颠哥伦比亚省4176名护士和3238名护士在新冠疫情前和新冠疫情期间的调查数据进行的二次分析。来自PHQ - 9的数据检验了单维度性、信度以及项目功能差异（DIF）的假设。PHQ - 9显示出极好的内部一致性（= 0.9）和单维因子结构。PHQ - 9的项目在护理角色、性别和工作场所部门方面不存在项目功能差异。本研究支持将PHQ - 9有效用作护士抑郁症状的筛查工具。
