Table 4.
Associations of clinical characteristics with change in six-minute walk among participants randomized to exercise and control, respectively (continued)
| N | Baseline six-minute walk, mean (STD) | 6-month six-minute walk, mean (STD) | Change of six-minute walk within group, mean (95% CI) | Change of six-minute walk between groups, mean (95% CI) | P value | |
|---|---|---|---|---|---|---|
| Lower extremity revascularization | ||||||
| Participants randomized to exercise | ||||||
| No | 97 | 347.03 (89.77) | 371.99 (78.87) | 24.97 (12.73, 37.21) | Reference | 0.6151 |
| Yes | 44 | 314.85 (105.17) | 345.40 (107.60) | 30.55 (12.38, 48.72) | 5.58 (−16.33, 27.50) | |
| Participants randomized to control | ||||||
| No | 101 | 344.36 (93.43) | 337.15 (99.11) | −7.21 (−19.18, 4.76) | Reference | 0.6756 |
| Yes | 41 | 314.98 (88.06) | 303.05 (103.64) | −11.93 (−30.72, 6.85) | −4.73 (−27.00, 17.55) | |
| Baseline six-minute walk | ||||||
| Participants randomized to exercise | ||||||
| ≤ 333.8 meters | 73 | 265.23 (57.68) | 313.00 (72.66) | 47.77 (34.60, 60.94) | Reference | <0.0001 |
| > 333.8 meters | 68 | 414.02 (62.51) | 418.11 (72.00) | 4.10 (−9.55, 17.75) | −43.67 (−62.64, −24.70) | |
| Participants randomized to control | ||||||
| ≤ 333.8 meters | 64 | 255.02 (57.65) | 257.23 (79.58) | 2.21 (−12.64, 17.05) | Reference | 0.0549 |
| > 333.8 meters | 78 | 402.22 (55.50) | 384.81 (78.50) | −17.41 (−30.86, −3.96) | −19.62 (−39.65, 0.42) | |
| Baseline maximal treadmill walking time | ||||||
| Participants randomized to exercise | ||||||
| ≤6.30 minutes | 75 | 305.80 (84.70) | 340.26 (83.37) | 34.46 (20.66, 48.26) | Reference | 0.1069 |
| > 6.30 minutes | 66 | 372.42 (95.59) | 390.32 (88.93) | 17.90 (3.19, 32.61) | −16.56 (−36.73, 3.62) | |
| Participants randomized to control | ||||||
| ≤6.30 minutes | 62 | 297.74 (77.45) | 294.29 (85.46) | −3.45 (−18.69, 11.80) | Reference | 0.3774 |
| > 6.30 minutes | 80 | 365.44 (92.93) | 352.89 (105.56) | −12.54 (−25.96, 0.88) | −9.10 (−29.41, 11.21) | |