Table 2.
Group Means and Arm Effects over Time for All Outcomes among Participants with PTSD (N=67)
| Intervention
|
Usual Care
|
Difference within groups (follow-up minus baseline; SD)
|
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | Baseline (n = 39) | 3 Mos (n=33) | 12 mos (n=35) | Baseline (n=28) | 3 Mos (n=28) | 12 Mos (n=25) | Intervention | Usual care | Difference between groupsb |
| Physical activity, min/wk | 79.7(99.6) | 142.2(106.1) | 161.0(147.1) | 103.8(159.5) | 73.08(110.4) | 121.5(167.7) | +56.9(163.7)a
d=0.82 |
+18.5(177.4) | 59.3, P=0.012 d=0.35 |
|
| |||||||||
| Six-minute walk, ft | 1684.1(362.0) | 1789.1(382.6) | 1836.4(386.6) | 1663.2(349.7) | 1764.65(308.6) | 1674.0(371.7) | +142.7(212.4)a
d=0.42 |
−40.9(216.5) | 120.8, P=0.004 d=0.56 |
|
| |||||||||
| Self-rated mental health (SF-36) | |||||||||
|
| |||||||||
| MCS | 38.9(12.0) | 45.1(11.7) | 41.2(12.9) | 42.1(14.3) | 43.2(14.3) | 42.7(15.8) | +2.3(9.4)a
d=0.19 |
+0.6(8.5) | 2.80, P=0.15 d=0.31 |
|
| |||||||||
| Role- emotional | 35.0(41.8) | 55.5(43.8) | 47.6(40.6) | 47.6(48.4) | 53.8(43.3) | 49.3(47.2) | +8.9(35.2)a
d=0.30 |
+4.0(30.9) | 5.77, P=0.41 d=0.17 |
|
| |||||||||
| Mental health | 56.3(22.6) | 65.9(20.7) | 59.1(23.8) | 63.7(24.0) | 61.5(23.2) | 61.3(27.8) | +0.6(14.6) d=0.12 |
−0.8(13.7) | 4.76, P=0.10 d=0.34 |
|
| |||||||||
| Vitality | 41.5(19.5) | 48.6(19.1) | 49.4(21.9) | 49.1(21.8) | 46.0(25.0) | 45.8(23.6) | +4.1(15.3)a
d=0.40 |
−2.0(13.3) | 9.62, P=0.002 d=0.67 |
|
| |||||||||
| Social functioning | 59.0(25.1) | 67.8(24.6) | 62.5(27.1) | 55.8(30.1) | 58.6(25.4) | 55.0(33.6) | +2.3(22.1) d=0.14 |
+0.5(22.4) | 7.15, P=0.067 d=0.32 |
|
| |||||||||
| Self-rated physical health (SF-36) | |||||||||
|
| |||||||||
| PCS | 40.6(9.1) | 39.6(9.8) | 42.6(8.9) | 39.0(9.7) | 38.5(13.1) | 37.8(11.8) | +2.0(8.4) d=0.22 |
−1.2(7.4) | 1.55, P=0.31 d=0.19 |
|
| |||||||||
| Physical function | 63.2(25.3) | 63.9(25.4) | 68.6(24.6) | 63.0(26.4) | 58.4(28.6) | 57.6(27.6) | +2.4(21.7)a
d=0.21 |
−3.6(20.4) | 6.10, P=0.10 d=0.29 |
Values represent Mean(SD);
a
Significant time effect (p 0.10);
b
Adjusted for baseline value, age, and race;
d = effect size; MCS= Mental Health Component Score of the SF-36; PCS=Physical Health Component Score of the SF-36