Table 2.

Patient characteristics (comorbidities) at study start

Comorbidity%
Diabetes53.9
    diabetes with insulin24.1
Congestive heart failure34.3
Ischemic heart disease/CAD24.7
Peripheral vascular disease14.9
Myocardial infarction8.5
Chronic obstructive pulmonary disease6.9
Cardiac dysrhythmia5.5
Smoker5.5
Cancer4.6
Inability to ambulate3.1
Alcoholism1.5
Drug dependence1.0
Pericarditis1.0
Inability to transfer0.9
Cardiac arrest0.7
HIV0.6
AIDS0.3