Table 3.

Association between mammographic density measures and serum sex-hormone levels

		Percentage density			Absolute dense area			Nondense area
	Covariates in model	β	SE	P value	β	SE	P value	β	SE	P value
Serum estradiol (n = 671)	Age and batch	−0.50	0.08	<0.001	−57.9	17.8	0.001	228.6	28.7	<0.001
	+BMI^a	−0.15	0.08	0.047	−39.3	19.9	0.049	15.4	20.8	0.46
Serum testosterone (n = 682)	Age and batch	−0.32	0.09	<0.001	−49.2	22.2	0.03	125.2	31.7	<0.001
	+BMI^a	−0.16	0.08	0.064	−38.6	22.4	0.09	31.4	22.8	0.17
Serum SHBG (n = 682)	Age and batch	0.84	0.14	<0.001	56.2	32.3	0.08	−435.9	45.9	<0.001
	+BMI^a	0.19	0.15	0.19	7.82	36.7	0.83	−68.1	41.8	0.10

↵^aBMI was added to the model that adjusts for age and batch.