Table 3.
Results for the multilevel growth models of the patterns of alcohol use
| Parameter | Depression only model | PTSD only model | Depression + PTSD model |
|---|---|---|---|
| Time components | |||
| Intercept | 4.504*** (0.281) | 4.880*** (0.199) | 4.772*** (0.283) |
| Time | −0.627*** (0.123) | −0.620*** (0.123) | −0.616*** (0.123) |
| Time x Time | 0.113** (0.038) | 0.113** (0.038) | 0.111** (0.038) |
| Psychological distress | |||
| WP depression | 0.020** (0.007) | 0.012 (0.007) | |
| BP depression | 0.060*** (0.010) | 0.007 (0.015) | |
| WP PTSD | 0.014** (0.005) | 0.009ǂ (0.005) | |
| BP PTSD | 0.056*** (0.007) | 0.051*** (0.012) | |
| WP depression x WP PTSD | 0.002** (0.001) | ||
| Pseudo-R2 | 0.086 | 0.107 | 0.112 |
Notes: Within person (WP) depression and WP PTSD were time-varying and person-mean centered. Between person (BP) depression and BP PTSD used the person mean scores. All models controlled for age (grand-mean centered) and race (reference = Coloured/Other). ǂp < 0.10; **p < 0.01; ***p < 0.001.