Table 4.
Estimated marginal means, standard errors, and Mixed effect Model Repeated Measures (MMRM) test of group-by-measurement-occasion interaction for all secondary outcome measures. PRADAS-A: Parenting to Reduce Adolescent Depression and Anxiety Scale-Adolescent report; SCAS-C: Spence Children’s Anxiety Scale-Child-report; SCAS-P: Spence Children’s Anxiety Scale-Parent-report; SMFQ-C: Short Mood and Feelings Questionnaire-Child-report; SMFQ-P: Short Mood and Feelings Questionnaire-Parent-report.
| Measure and occasion | Estimated marginal means (SE), n | MMRM group-by-measurement-occasion interaction effect | Cohen da (95% CI) | ||||
|
|
|
Intervention | Control | F | Degrees of freedom | P value |
|
| PRADAS-A |
|
|
0.02 | 1,303.82 | .88 |
|
|
|
|
Baseline | 24.59 (0.44), 154 | 24.45 (0.42), 173 |
|
|
|
|
|
|
3-month | 23.89 (0.49), 146 | 23.82 (0.47), 159 |
|
|
|
0.00 (−0.22 to 0.23) |
| SCAS-P |
|
|
0.17 | 1,325.55 | .68 |
|
|
|
|
Baseline | 16.65 (0.91), 164 | 16.86 (0.86), 185 |
|
|
|
|
|
|
3-month | 13.66 (0.88), 151 | 14.15 (0.82), 177 |
|
|
|
−0.06 (−0.29 to 0.15) |
| SCAS-C |
|
|
0.67 | 1,302.74 | .41 |
|
|
|
|
Baseline | 30.81 (1.44), 153 | 28.78 (1.35), 173 |
|
|
|
|
|
|
3-month | 29.88 (1.51), 145 | 26.86 (1.43), 159 |
|
|
|
0.18 (−0.05 to 0.40) |
| SMFQ-P |
|
|
0.59 | 1,324.76 | .44 |
|
|
|
|
Baseline | 4.43 (0.36), 164 | 4.15 (0.34), 185 |
|
|
|
|
|
|
3-month | 3.44 (0.33), 151 | 3.52 (0.31), 177 |
|
|
|
−0.04 (−0.26 to 0.17) |
| SMFQ-C |
|
|
0.18 | 1,301.25 | .68 |
|
|
|
|
Baseline | 6.46 (0.46), 152 | 5.96 (0.43), 173 |
|
|
|
|
|
|
3-month | 6.61 (0.50), 146 | 5.91 (0.47), 159 |
|
|
|
0.12 (−0.10 to 0.35) |
aCohen d effect size calculated based on observed means at end point (3-month follow-up) and SD of the control group.