Comparison of a single self-assessment item with the PHQ-9 for detecting depression in general practice

Abstract

Background: Several factors need to be considered when selecting a screening tool for depression including accuracy, level of burden for patients and for staff to administer and follow-up. Objective: This study aimed to explore the utility of a single self-assessment item in identifying possible cases of depression in primary care by examining sensitivity and specificity with the nine-item Patient Health Questionnaire (PHQ-9) at different thresholds. Design: Cross-sectional survey presented on a touchscreen computer. Participants. Adult patients attending 12 urban general practices in Australia completed a health status questionnaire (n = 1004). Main measures. Depression was assessed by the ..