Screening for distress and depression in cancer patients: is ultrashort depression screening a valid measure in the UK? A prospective validation study.

This study sought to validate the two-question (2Q) depression screen as a screening tool for psychological distress and depression against four criterion measures (Hospital Anxiety and Depression Scale [HADS], General Health Questionnaire-12, Brief Symptom Inventory-18 [BSI-18], and the distress thermometer) for a UK cancer population. We used a prospective cross-sectional study design. A consecutive sample of 399 outpatients from four outpatient oncology clinics and a palliative care day center in North London were initially identified.