Table 2.
Comparisons between immediate cognitive therapy group and waiting list group at 12 weeks after randomisation on primary and secondary outcome measures
| Variable | Immediate therapy group | Waiting list group | Mean (95% CI) difference between adjusted means* | P value | |||
|---|---|---|---|---|---|---|---|
| No | Mean (SD) | No | Mean (SD) | ||||
| All randomised patients: | |||||||
| Post-traumatic diagnosis scale | 29 | 21.8 (14.4) | 29 | 33.4 (11.6) | 9.6 (3.6 to 15.6) | 0.002 | |
| Beck depression inventory | 29 | 22.6 (14.1) | 29 | 32.7 (14.9) | 10.1 (4.8 to15.3) | <0.001 | |
| Sheehan disability scale | 29 | 5.3 (2.8) | 25 | 7.4 (2.6) | 1.3 (0.3 to 2.5) | 0.045 | |
| Completers†: | |||||||
| Post-traumatic diagnosis scale | 20 | 15.1 (9.9) | 25 | 33.1 (9.9) | 16.9 (10.9 to 23.0) | <0.001 | |
| Beck depression inventory | 20 | 17.9 (12.1) | 25 | 33.6 (15.0) | 13.2 (7.2 to 19.3) | <0.001 | |
| Sheehan disability scale | 20 | 4.2 (2.4) | 22 | 7.4 (2.8) | 2.4 (1.0 to 3.8) | <0.001 | |
*Based on one way analysis of covariance with scores before immediate therapy or wait as covariates.
†Patients who had at least six sessions of therapy or stopped therapy early because of noticeable improvement. For completers' analysis, waiting list group includes only patients who subsequently completed therapy.