Table 3.

Adjusted associations for nondense area and alcohol intake, EDMD, 2001–2006

	Model 1: Age Adjusted		Model 2: Age And BMI Adjusted		Model 3: Fully Adjusted
	Nondense Area		Nondense Area		Nondense Area
	β	95% CI	β	95% CI	β	95% CI
Alcohol intake between age 20–29 years (servings/week)a
0	Ref	--	Ref	--	Ref	--
<3	−9.86	−24.61, 4.88	−1.39	−13.43, 10.65	−0.34	−12.46, 11.79
3–7	−8.04	−22.59, 6.50	1.17	−11.27, 13.61	5.72	−6.94, 18.38
>7	11.01	−5.79, 27.81	10.35	−4.07, 24.77	12.35	−2.78, 27.47
P for trend	0.37		0.18		0.09
Current alcohol intake (servings/week)b
0	Ref	--	Ref	--	Ref	--
<3	−21.22	−35.57, −6.87	−0.23	−10.61, 10.16	−0.17	−10.38, 10.04
3–7	−25.07	−38.93, −11.22	4.19	−5.30, 13.69	4.18	−5.39, 13.75
>7	−16.56	−33.38, 0.25	−0.80	−11.33, 9.74	−0.24	−10.95, 10.47
P for trend	<0.01		0.55		0.69

Abbreviation: EDMD, Early Determinants of Mammographic Density; CI, confidence interval;

^aAlcohol intake age 20–29 years Model 1 is adjusted for age at mammogram (years); Model 2 includes model 1 adjustments and BMI in 20s (continuous); and Model 3 includes model 2 adjustments, geographic site, race, current smoking status (never (referent), former, current), menopausal status (premenopausal (referent), peri/post-menopausal), parity (nulliparous, parous), and age at first birth modeled at the mean.

^bCurrent alcohol intake Model 1 is adjusted for age at mammogram (years); Model 2 includes model 1 adjustments and current BMI; Model 3 includes model 2 adjustments, geographic site, parity (nulliparous, parous), and age at first birth modeled at the mean.