Table 4 Secondary outcome measures: Comparing means across arms (observed data only)
| Â | 3 months | 6 months | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | Intervention | Control | Intervention | Control | ||||||
|  | N | Mean (sd) | N | Mean (sd) | B coefficient†(95% CI) p value | N | Mean (sd) | N | Mean (sd) | B coefficient†(95% CI) p value |
Anxiety** (Beck Anxiety Inventory) | 46 | 19.0 (10.4) | 19 | 19.5 (11.1) | -0.22 (-5.97 to 5.52) p 0.94 | 42 | 16.1 (10.6) | 19 | 16.9 (13.4) | 1.29 (-4.95 to 7.54) p 0.68 |
Physical component of SF12 score* | 45 | 46.7 (11.8) | 19 | 45.6 (11.0) | 1.59 (-3.18 to 6.37) p 0.51 | 40 | 49.3 (10.1) | 18 | 41.5 (11.0) | 8.05 ( 3.53 to 12.60) p 0.001 |
Mental component of SF12 score* | 45 | 37.2 (12.2) | 19 | 29.8 (9.0) | 6.07 (-0.04 to 12.2) p 0.051 | 40 | 36.22 (13.09) | 18 | 32.8 (13.6) | 2.15 (-5.13 to 9.44) p 0.56 |
Process or intermediate measures | ||||||||||
Automatic thoughts ** (Shortened Automatic Thoughts Questionnaire) | 45 | 19.6 (8.7) | 19 | 22.1 (8.0) | -2.88 (-7.29 to 1.54) (p 0.20) | 40 | 18.3 (8.1) | 19 | 18.3 (7.23) | 0.42 (-3.75 to 4.59) P 0.84 |
Social Support* (shortened Medical Outcome Study Social Support Survey) | 46 | 23.8 (9.5) | 19 | 23.1 (9.6) | 2.40 (-1.65 to 6.45) (p 0.24) | 40 | 24.1 (10.6) | 19 | 24.1 (9.91) | 0.74 (-3.94 to 5.43) p 0.75 |