Patient Health Questionnaire-4

**Semantic type:** Intellectual Product

**Definition:** An ultra-brief self-report questionnaire that consists of a 2-item depression scale that uses the first 2 questions from the Patient Health Questionnaire-9 (PHQ-9) and a 2-item anxiety scale that uses the first two questions from the Generalized Anxiety Disorder 7-item scale (GAD-7).

**Synonyms:** - PHQ-4 - Patient Health Questionnaire - 4 Item