Background Depression is a leading cause of disability. International guidelines recommend
screening for depression and the Patient Health Questionnaire 9 (PHQ-9) has been …

Objective To update a previous individual participant data meta-analysis and determine the
accuracy of the Patient Health Questionnaire-9 (PHQ-9), the most commonly used …

The current pandemic wave of COVID-19 has resulted in significant uncertainty for the
general public. Mental health and examining factors that may influence distress have been …

This study sought to identify factors associated with depression, anxiety, and PTSD
symptomatology in US young adults (18-30 years) during the COVID-19 pandemic. This …

Importance The Patient Health Questionnaire depression module (PHQ-9) is a 9-item self-
administered instrument used for detecting depression and assessing severity of …

Background We aimed to estimate the prevalence of current depressive disorder in 27
European countries, and to explore differences in prevalence between European countries …

Purpose During the COVID-19 pandemic, many universities evacuated their campuses,
requiring students to vacate on campus residences. The psychological outcomes of students …

Introduction Healthcare workers are vulnerable to adverse mental health impacts of the
COVID-19 pandemic. We assessed prevalence of mental disorders and associated factors …

Depression is the most prevalent mental disorder, a greater cause of disability than any
other disease, and a major contributor to direct and indirect health care costs1. In the …

Importance Depression is common and associated with substantial burden. Suicide rates
have increased over the past decade, and both suicide attempts and deaths have …