HARMONY training schools

The COST Action HARMONY, devoted to make statistical tools for test evaluation and disease prevalence estimation more accessible, does some training schools (online and hybrid) over the summer. Check it out here.

Patient Health Questionnaire-9 scores do not accurately estimate depression prevalence: individual participant data meta-analysis

**Objectives:** Depression symptom questionnaires are not for diagnostic classification. Patient Health Questionnaire-9 (PHQ-9) scores ≥10 are nonetheless often used to estimate depression prevalence. We compared PHQ-9 ≥10 prevalence to Structured …