Table 2.

Hierarchical regression results for heavy episodic drinking (HED) variables predicting bone mineral density (BMD) at anterior-posterior (AP) and lateral (LAT) projections of BMD at the lumbar spine after controlling for previously established correlates (N = 87)

Step	Predictor	B	SE B	β	t	F change	R2 change
AP spine BMD in g/cm2
1	Current age	.012	.020	.057	0.62	9.63***	.37***
	Lean body mass (kg)	.010	.002	.540	6.00
	BPAQ Physical Activity Score	.001	.000	.103	1.15
	Age at menarche	-.022	.006	-.299*	-3.36**
	Years using oral contraceptives	-.012	.006	-.170†	-1.85†
2	Current age	.030	.021	.141	1.44	2.71†	.04†
	Lean body mass (kg)	.011	.002	.582	6.43***
	BPAQ Physical Activity Score	.001	.000	.110	1.25
	Age at menarche	-.019	.006	-.268**	-3.04**
	Years using oral contraceptives	-.011	.006	-.160	-1.72
	Early HED (≤15 years = 1, >15 years = 0)	.028	.022	.117	1.27
	Frequent HED (≥115 times = 1, <115 times = 0)	-.053	.024	-.220*	-2.21*
LAT spine BMD in g/cm2
1	Current age	.009	.014	.049	0.52	8.67***	.35***
	Lean body mass (kg)	.010	.002	.532***	5.83***
	BPAQ Physical Activity Score	.001	.000	.051	0.56
	Age at menarche	-.019	.006	-.283**	-3.10**
	Years using oral contraceptives	-.011	.006	-.173†	-1.90†
2	Current age	.021	.019	.13	1.35	2.49†	.04†
	Lean body mass (kg)	.010	.002	.568***	6.23***
	BPAQ Physical Activity Score	.001	.000	.061	0.670
	Age at menarche	-.016	.006	-.251**	-2.76**
	Years using oral contraceptives	-.008	.006	-.127	-1.36
	Early HED (≤15 years = 1, >15 years = 0)	.007	.021	.033	0.350
	Frequent HED (≥115 times = 1, <115 times = 0)	-.048	.022	-.221*	-2.22*

Notes: BPAQ = Bone-Specific Physical Activity Questionnaire.

^*p < .05;

^**p < .01;

^***p < .001;

^†p marginally significant between .05 and .08.