Fig. 1From: The effectiveness of German disease management programs (DMPs) in patients with type 2 diabetes mellitus and coronary heart disease: results from an observational longitudinal studyStudy design and patient selection. *DMP status not reported by physician (n = 29), patient not cared for by physician (n = 31), patient is privately insured (n = 79), patient not eligible for DMP (n = 8), patient questionnaire empty (n = 6). **3 inconsistent cases (diabetes type 2 indication in 2006, but not in 2011) were excludedBack to article page