Interpretation This review shows that, if the algorithm scoring method is used, the PHQ-9 has a low sensitivity for detecting MDD. This could be due to the rating scale categories of the measure, higher specificity or other factors that warrant further research. The summed-item score method ...
RESEARCH ARTICLE PHQ-9 and PHQ-2 for Screening Depression in Chinese Rural Elderly Zi-wei Liu, Yu Yu, Mi Hu, Hui-ming Liu, Liang Zhou, Shui-yuan Xiao* Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Chang...
A previous study sought to predict suicide risk using the Columbia-Suicide Severity Rating Scale (C-SSRS), based on the PHQ-9 cut-off value. They showed high sensitivity and specificity, but low PPV (22.0–30.4%) [45]. In this study, measurements using the cut-off value of the existing...