Table 2

Comorbidities by ABI Group

Characteristic ComorbiditiesABI Groupp Value
Normal (n = 4,420)High (n = 296)
Angina760 (17.5)58 (20.0)0.28
Myocardial infarction596 (13.7)45 (15.5)0.40
CHF344 (7.9)38 (13.1)0.002
Angioplasty363 (8.4)34 (11.7)0.05
Coronary artery bypass449 (10.3)43 (14.7)0.02
Transient ischemic attack221 (5.1)21 (7.2)0.11
Stroke236 (5.4)26 (8.9)0.01
Carotid endarterectomy84 (1.9)6 (2.1)0.86
Aneurysm39 (0.9)2 (0.7)>0.99
Foot ulcer64 (1.5)13 (4.5)<0.001
Neuropathy565 (13.2)58 (20.2)<0.001
Venous thrombosis177 (4.1)17 (5.9)0.14
Joint disease/rheumatoid arthritis1,671 (38.6)92 (32.1)0.03

Values are expressed as n (%).

CHF = congestive heart failure; other abbreviations as in Table 1.