Longitudinal cohort study of depression, post-traumatic stress, and alcohol use in South African women who attend alcohol serving venues

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.

ISSN: 1471-244X