Results of Secondary Outcomes (Continuous Variables)
| T1 | T2 | Marginal Mean Differences | |||||
|---|---|---|---|---|---|---|---|
| Secondary Outcome | No. | Mean (SD) | No. | Mean (SD) | Mean at T2 | Difference I-Ca (95% CI) | P Value b |
| VR-12 Physical Component Summary | |||||||
| Control | 140 | 39.5 (10.5) | 118 | 40.9 (9.3) | 41.25 | -0.35 (-2.31 to 1.62) | .73 |
| Intervention | 144 | 40.5 (11.0) | 127 | 41.1 (10.7) | 40.91 | ||
| VR-12 Mental Component Summary | |||||||
| Control | 140 | 54.7 (9.5) | 118 | 54.8 (9.6) | 54.67 | 0.68 (-1.42 to 2.78) | .52 |
| Intervention | 144 | 53.6 (11.5) | 127 | 55.4 (10.4) | 55.35 | ||
| EQ-5D-5L Index | |||||||
| Control | 139 | 0.839 (0.126) | 118 | 0.850 (0.112) | 0.850 | -0.020 (-0.047 to 0.007) | .14 |
| Intervention | 144 | 0.838 (0.145) | 127 | 0.831 (0.152) | 0.830 |
EQ-5D-5L = 5-level EuroQol 5-dimensions questionnaire; I-C = intervention minus control; T1 = baseline; T2 = study end point at 4 months; VR-12 = Veterans RAND 12-Item Health Survey.
↵aDifference I-C = marginal mean at T2 (intervention) - marginal mean at T2 (control).
↵bMultilevel modeling (linear mixed model) comparing results at T2, adjusted for scores at T1 and the practice.