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Table 1 Overview of all measurements and instruments

From: Cost-effectiveness of a stepped-care intervention to prevent major depression in patients with type 2 diabetes mellitus and/or coronary heart disease and subthreshold depression: design of a cluster-randomized controlled trial

  screening baseline 3 months 6 months 9 months 12 months
Depression symptoms (PHQ-2) x      
Demographics   x     
Depression symptoms (PHQ-9)   x x x x x
Clinical depression (MINI)   x   x   x
Health care costs (Tic-P)   x x x x x
Quality of life (EQ-5D)   x x x x x
Anxiety (HADS-A)   x x x x x
Personal and family history (DIS)   x     
Social support   x   x   x
Existing chronic illnesses   x   x   x
Locus of control   x x x x x
Satisfaction with provided care (CSQ)       x