The extent and nature of depressive phenomena in primary health care. A study in Calcutta, India.

The extent and factor structure of depressive phenomena were investigated in three primary health care clinics in the city of Calcutta. The Self-Reporting Questionnaire and the Screening for Depression Questionnaire were used as the first-stage instruments, and the Clinical Interview Schedule and the Hamilton Rating Scale for Depression as the second-stage instruments. The implications of the findings are discussed.