TABLE 2.
Three-Level Hierarchical Linear Model Estimated Means
| GC | IPT-AST | |||||
|---|---|---|---|---|---|---|
| Outcome | N | M | SD | n | M | SD |
| CES-D | ||||||
| Baseline | 91 | 13.61 | 8.65 | 95 | 14.94 | 8.52 |
| Mid | 90 | 11.67 | 9.64 | 94 | 11.07 | 8.25 |
| Post | 90 | 11.37 | 9.28 | 93 | 10.49 | 8.57 |
| 6 Month | 85 | 10.59 | 7.59 | 89 | 8.97 | 7.79 |
| 12 Month | 82 | 9.33 | 8.06 | 91 | 9.33 | 9.54 |
| 18 Month | 77 | 8.53 | 6.82 | 83 | 9.60 | 10.96 |
| 24 Month | 78 | 7.96 | 7.90 | 84 | 9.79 | 9.94 |
| CGAS | ||||||
| Baseline | 91 | 67.85 | 5.24 | 95 | 67.26 | 4.98 |
| Post | 90 | 72.55 | 6.69 | 93 | 73.22 | 5.80 |
| 6 Month | 85 | 74.37 | 5.85 | 89 | 75.53 | 6.64 |
| 12 Month | 82 | 74.16 | 6.60 | 89 | 74.25 | 7.32 |
| 18 Month | 77 | 74.01 | 5.74 | 82 | 73.35 | 7.60 |
| 24 Month | 77 | 73.90 | 6.53 | 82 | 72.70 | 7.18 |
Note: Means are model-based estimates within the three-level piecewise hierarchical linear model with two phases of change (baseline through 6-month follow-up and 6-month follow-up through 24-month follow-up), adjusted for school, the correlation attributable to participants nested within groups, as well as baseline covariates as warranted. Estimated means for the CES-D are back-transformed estimated means. GC = group counseling; IPT-AST = Interpersonal Psychotherapy–Adolescent Skills Training; CES-D = Center for Epidemiologic Studies–Depression Scale; CGAS = Children’s Global Assessment Scale.