A Unique and Rigorous Data Platform for Depression Screening Research

The Hospital Anxiety and Depression Scale (HADS)  is a 14-item measure designed to assess anxiety and depression symptoms in medical patients, with emphasis on reducing the impact of physical illness on the total score. The depression items tend to focus on the anhedonic symptoms of depression. Items are rated on a 4-point severity scale. The HADS produces two scales, one for anxiety (HADS–A) and one for depression (HADS–D), differentiating the two states. Scores of greater than or equal to 11 on either scale indicate a definitive case.