Table 3.

Results from analyses to examine whether changes in depression mediate the effect of AA attendance on alcohol use outcomes at late follow-up (12, 18, 24 months; Fig. 1; Analysis 5, 6).

PDA late (n = 183)	Coeff	SE	t	p
Path A (to BDI 18 months)
AA 12 months	−7.947	3.966	−2.004	0.047
PDA baseline	0.134	2.114	0.064	0.949
Path A (to PDA 18 months)
AA 12 months	0.397	0.151	2.627	0.009
BDI baseline	−0.004	0.003	−1.779	0.077
Path B (to PDA 24 months)
BDI 18 months	0.000	0.003	0.080	0.937
AA 12 months	0.067	0.097	0.691	0.490
BDI baseline	0.001	0.003	0.169	0.866
Total effect (to PDA 24 months)
AA 12 months	0.351	0.131	2.680	0.008
BDI baseline	−0.003	0.003	−0.839	0.403
	Coeff	Boot SE	Boot LLCI	Boot ULCI
Indirect Effect (BDI 18 months is mediator)	−0.006	0.103	−0.293	0.159
Indirect effect (PDA 18 months is mediator)	0.137	0.050	0.033	0.234
DPDD late (n=183)	Coeff	SE	t	p
Path A (to BDI 18 months)
AA 12 months	7.801	4.010	−1.945	0.053
DPDD baseline	−0.109	0.486	−0.225	0.823
Path A (to DPDD 18 months)
AA 12 months	−1.478	0.793	−1.864	0.064
BDI baseline	0.029	0.012	2.417	0.017
Path B (to DPDD 24 months)
BDI 18 months	−0.004	0.012	−0.362	0.718
AA 12 months	−0.356	0.807	−0.441	0.660
BDI baseline	0.006	0.011	0.570	0.570
Total effect (to DPDD 24 months)
AA 12 months	−1.358	0.730	−1.860	0.065
BDI baseline	0.024	0.012	2.021	0.045
	Coeff	Boot SE	Boot LLCI	Boot ULCI
Indirect effect (BDI 18 months is mediator)	−0.004	0.012	−0.015	0.034
Indirect effect (DPDD 18 months is mediator	−0.122	0.066	−0.257	0.001

PDA = percent days abstinent, DPDD = drinks per drinking day, BDI = beck depression inventory, AA = AA attendance, Coeff = coefficient, SE = standard error, LLCI = lower level of confidence interval, ULCI = upper level of confidence interval. All indirect effect values are completely standardized.