Table 1.
Patient Demographics for Development and Validation Samples.
| Characteristics | All Patients N=192 | Development Sample N=96 | Validation Sample N=96 | P Value |
|---|---|---|---|---|
| Mean age, years (SD) | 64 (15) | 66 (14) | 62 (17) | 0.07 |
| Male sex, n (%) | 108 (52) | 60 (62.5) | 48 (50) | 0.08 |
| Caucasians, n (%) | 139 (72) | 72 (75) | 67 (70) | 0.42 |
| Tobacco use, n (%) | 136 (71) | 65 (68) | 71 (74) | 0.39 |
| End stage renal disease, n (%) | 16 (8.3) | 8 (8.3) | 8 (8.3) | 1.00 |
| CVA/TIA, n (%) | 33 (17) | 22 (23) | 11 (11.4) | 0.03 |
| Diabetes Mellitus, n (%) | 70 (36) | 36 (37) | 34 (35) | 0.76 |
| Hypertension, n (%) | 138 (72) | 70 (73) | 68 (71) | 0.74 |
| Cancer, n (%) | 34 (18) | 21 (22) | 13 (13.5) | 0.13 |
| Peripheral vascular disease, n (%) | 24 (12.5) | 16 (16.6) | 8 (8.3) | 0.08 |
| Coronary artery disease, n (%) | 78 (41) | 42 (44) | 36 (37) | 0.37 |
| Congestive heart failure, n (%) | 68 (35) | 33 (34) | 35 (36) | 0.76 |
| Chronic obstructive pulmonary disease, n (%) | 63 (33) | 33 (34) | 30 (31) | 0.64 |
| Hyperlipidemia, n (%) | 84 (44) | 49 (51) | 35 (36) | 0.04 |
| Liver Disease, n (%) | 13 (6.7) | 5 (5.2) | 8 (8.3) | 0.38 |
CVA/TIA: Cerebrovascular Accident/Transient Ischemic Attack