Screening for anxiety, depression, and anxious depression in primary care: A field study for ICD-11 PHC.

•Study participants presented with psychological distress to primary care physicians in 4 countries.•Two five-item screening scales for anxiety and depression were used.•Participants also received a structured psychiatric diagnostic interview.•Screening scale scores predicted 89.6% of above-threshold mood or anxiety disorders.•This represents a major improvement in detection compared with current practice.