Table 3.

Main analyses of the effect of depressive symptoms, 5-HTTLPR genotype¹, and their interaction on alcohol use and alcohol problems.

Dependent variable	Model	β	SE	t	p	η2
Total drinks in past 30 days	5-HTTLPR genotype1	6.988	19.506	0.36	0.721	0.002
	BDI-II	3.805	1.344	2.830	0.006*	0.105
	Genotype*BDI-II	−4.751	1.779	−2.670	0.009*	0.095
Drinking days in past 30 days	5-HTTLPR genotype	−0.124	2.572	−0.050	0.962	0.000
	BDI-II	0.261	0.177	1.470	0.146	0.031
	Genotype*BDI-II	−0.377	0.235	−1.610	0.112	0.037
Drinks per drinking day in past 30 days	5-HTTLPR genotype	0.147	1.086	0.135	0.893	0.002
	BDI-II	0.088	0.074	1.182	0.241	0.054
	Genotype*BDI-II	−0.147	0.098	−1.505	0.137	0.028
Binge-drinking days in past 30 days	5-HTTLPR genotype	−0.414	1.822	−0.227	0.821	0.001
	BDI-II	0.155	0.126	1.231	0.223	0.083
	Genotype*BDI-II	−0.236	0.166	−1.422	0.160	0.051
Rutgers alcohol problem index score (possible range: 0–69)	5-HTTLPR genotype	−1.641	5.002	−0.330	0.744	0.002
	BDI-II	1.290	0.345	3.740	<0.001*	0.171
	Genotype*BDI-II	−0.837	0.456	−1.840	0.071a	0.047

¹Genotype was coded as: SS/SL = 1, LL = 0.

*Significant results are starred.

^aTrend-level finding.