Table 2.
Estimated marginal means of primary and secondary outcomes
| Baseline-adjusted models* | Fully adjusted models† | ||||||
| Control | Intervention | Difference | Control | Intervention | Difference | ||
| PHQ-ADS‡ | Week 7 (post-DWM) | 17 (15.9, 18) | 13.5 (12.1, 14.9) | 3.4 (1.7, 5.2) | 18.5 (17.1, 20) | 15 (13.3, 16.6) | 3.5 (1.8, 5.3) |
| Week 13 (post-PM+) | 15.5 (13.9, 17.2) | 9.7 (8.1, 11.3) | 5.9 (3.6, 8.1) | 17.2 (15.3, 19.1) | 11.2 (9.2, 13.3) | 6 (3.7, 8.3) | |
| Week 21 (follow-up) | 14.8 (13.1, 16.4) | 10.4 (8.8, 12) | 4.4 (2.1, 6.7) | 16.4 (14.6, 18.3) | 11.9 (9.7, 14) | 4.5 (2.2, 6.9) | |
| PHQ-9§ | Week 7 (post-DWM) | 8.3 (7.7, 8.9) | 6.7 (5.9, 7.5) | 1.6 (0.6, 2.6) | 9 (8.3, 9.8) | 7.4 (6.5, 8.3) | 1.6 (0.6, 2.6) |
| Week 13 (post-PM+) | 7.8 (6.9, 8.7) | 4.6 (3.8, 5.4) | 3.2 (2, 4.4) | 8.6 (7.6, 9.6) | 5.4 (4.4, 6.3) | 3.3 (2.1, 4.5) | |
| Week 21 (follow-up) | 7.5 (6.6, 8.4) | 5.1 (4.2, 6) | 2.5 (1.2, 3.7) | 8.3 (7.4, 9.3) | 5.8 (4.7, 6.9) | 2.6 (1.3, 3.8) | |
| GAD-7¶ | Week 7 (post-DWM) | 8.7 (8.1, 9.2) | 6.8 (6, 7.5) | 1.9 (0.9, 2.8) | 9.6 (8.7, 10.4) | 7.6 (6.6, 8.6) | 2 (1, 2.9) |
| Week 13 (post-PM+) | 7.7 (6.8, 8.6) | 5.1 (4.3, 5.9) | 2.6 (1.4, 3.8) | 8.6 (7.5, 9.7) | 5.9 (4.8, 7.1) | 2.7 (1.5, 3.9) | |
| Week 21 (follow-up) | 7.2 (6.4, 8.1) | 5.3 (4.5, 6.2) | 1.9 (0.7, 3.1) | 8.1 (7.1, 9.2) | 6.2 (4.9, 7.4) | 2 (0.8, 3.2) | |
| PCL-5** | Week 7 (post-DWM) | 11 (9.9, 12.1) | 9.9 (8.8, 10.9) | 1.1 (−0.4, 2.6) | 11.4 (9.8, 12.9) | 10.3 (8.8, 11.8) | 1.1 (−0.4, 2.6) |
| Week 13 (post-PM+) | 9.7 (8.5, 10.9) | 7.4 (6.3, 8.5) | 2.3 (0.7, 3.9) | 10.2 (8.6, 11.8) | 7.7 (6.1, 9.4) | 2.5 (0.8, 4.1) | |
| Week 21 (follow-up) | 9.5 (8.2, 10.9) | 7.4 (6.2, 8.6) | 2.2 (0.3, 4) | 10 (8.2, 11.8) | 7.7 (5.9, 9.5) | 2.3 (0.4, 4.1) | |
All models include participants as a random effect. All CIs were calculated using robust SEs.
*Adjusted for outcome score measured at baseline.
†Adjusted for age, gender, level of education, use of mental health services prior to enrolment, outcome score measured at baseline and site.
‡The numbers of participants valid at weeks 21, 13 and 7 are 94, 88 and 102 in the control arm, and 90, 86 and 99 in the intervention arm.
§The numbers of participants valid at weeks 21, 13 and 7 are 94, 89 and 102 in the control arm, and 90, 86 and 99 in the intervention arm.
¶The numbers of participants valid at weeks 21, 13 and 7 are 94, 88 and 102 in the control arm, and 90, 86 and 99 in the intervention arm.
**The numbers of participants valid at weeks 21, 13 and 7 are 90, 82 and 99 in the control arm, and 88, 85 and 96 in the intervention arm.
DWM, Doing What Matters in Times of Stress; GAD-7, seven-item Generalised Anxiety Disorder; PCL-5, Post-Traumatic Stress Disorder Checklist for DSM-5; PHQ-9, nine-item Patient Health Questionnaire; PHQ-ADS, Patient Health Questionnaire-Anxiety and Depression Scale; PM+, Problem Management Plus.