Table 1.
Baseline characteristics of the sample*
| Baseline measures | Overall N = 178 | Control group N = 90 | Intervention group N = 88 | p value |
|---|---|---|---|---|
| Age |
70.66 (9.44) |
71.64 (9.51) |
69.65 (9.32) |
0.1589 |
| Male, % |
49.44 |
48.89 |
50.00 |
0.8822 |
| African-American, % |
48.88 |
42.22 |
55.68 |
0.0725 |
| Ankle brachial index |
0.67 (0.17) |
0.68 (0.18) |
0.67 (0.16) |
0.5309 |
| Body mass index (kg/m2) |
28.79 (6.54) |
29.13 (6.67) |
28.45 (6.42) |
0.4928 |
| Current smoker, % |
21.91 |
18.89 |
25.00 |
0.3244 |
| Angina, % |
16.38 |
15.73 |
17.05 |
0.8132 |
| MI, % |
13.48 |
14.44 |
12.50 |
0.7041 |
| CHF, % |
11.24 |
12.22 |
10.23 |
0.6735 |
| Stroke, % |
13.48 |
16.67 |
10.23 |
0.2085 |
| Pulmonary disease, % |
12.92 |
13.33 |
12.50 |
0.8684 |
| Cancer, % |
16.38 |
16.85 |
15.91 |
0.8652 |
| Diabetes mellitus, % |
33.71 |
37.78 |
29.55 |
0.2454 |
| Knee arthritis, % |
28.25 |
22.47 |
34.09 |
0.086 |
| Hip arthritis, % |
15.73 |
18.89 |
12.50 |
0.2418 |
| Spinal stenosis, % |
9.55 |
7.78 |
11.36 |
0.4157 |
| Disc disease, % |
23.73 |
24.72 |
22.73 |
0.7555 |
| Rheumatoid arthritis, % |
11.3 |
7.87 |
14.77 |
0.1467 |
| Six minute walk (m) | 355.33 (94.54) | 353.27 (91.92) | 357.43 (97.64) | 0.7701 |
Legend: *All table values are unadjusted and reflect the mean (SD) unless specified as%. MI = myocardial infarction; CHF = congestive heart failure.