Table 1 Demographic data
|  |  ≥ 80 years old (n = 123) |  < 80 years old (n = 123) | P value |
|---|---|---|---|
Age, years | 84 ± 4 | 66 ± 9 | 0.0001 |
Sex (female) | 65 (53%) | 35 (28%) | 0.0001 |
Body mass index, kg/m2 | 26 ± 5 | 27 ± 5 | 0.012 |
Hypertension | 110 (89%) | 112 (91%) | 0.83 |
Diabetes mellitus | 38 (31%) | 51 (41%) | 0.196 |
Obesity | 16 (13%) | 24 (20%) | 0.011 |
Current smoking | 12 (10%) | 45 (37%) | 0.0001 |
ABI target limb | 0.7 ± 0.4 | 0.67 ± 0.3 | 0.372 |
Coronary artery disease | 58 (47%) | 76 (61%) | 0.029 |
History of MI | 14 (11%) | 18 (15%) | 0.570 |
Prior CABG | 17 (14%) | 18 (15%) | 0.235 |
History of stroke | 11 (9%) | 18 (15%) | 0.172 |
Atrial fibrillation | 40 (32%) | 12 (10%) | 0.0001 |
COPD | 14 (11%) | 28 (23%) | 0.027 |
Kidney disease G3a and over | 74 (60%) | 23 (19%) | 0.0001 |
Regular hemodialysis | 5 (4%) | 2 (2%) | 0.749 |
PAD stage (Rutherford) | Â | Â | Â |
 1–3 | 52 (42%) | 94 (76%) | 0.0001 |
 4–6 | 71 (58%) | 29 (24%) | |
Prior PTA in the last 3Â months | 4 (3%) | 24 (20%) | 0.0001 |
Prior peripheral bypass | 17 (14%) | 18 (15%) | 0.235 |
Antiplatelet therapy | 82 (67%) | 110 (90%) | 0.0001 |
Statin therapy | 79 (64%) | 95 (77%) | 0.035 |