Physical Health Questionnaire 9 (PHQ-9) is a self-reported questionnaire for screening and severity measuring of clinical depression. PHQ-9 has nine items, which measure severity of various signs of depression according to reported response categories with assigned points.The test is normally used in outpatient and primary care settings for referral to a psychiatrist pending outcome. The assessment results enable users of the PHQ-9 to discern whether an individual’s depression score is normal, or mild, moderate, moderately severe, or severe
