The psychometric properties of PHQ-4 anxiety and depression screening scale among out of school adolescent girls and young women in Tanzania: a cross-sectional study.

The findings suggest that the PHQ-4 scale can reliably and validly screen for core symptoms of depression and anxiety among out of school AGYW. This tool is short and easy to administer. Thus, the PHQ-4 scale can be very useful in screening for anxiety and depression symptoms in the community, primary health facilities, research and programmatic settings.