Breast cancer susceptibility loci and mammographic density

Breast Cancer Research

Table 2 Mean percentage of mammographic density (MD) according to breast cancer susceptibility loci, Nurses' Health Study controls (1989 to 1998)

^aAge adjusted.
^bMultivariate adjusted for the following: age (continuous), body mass index (BMI) (continuous), alcohol consumption (none, <5 g/day, 5 to 14.9 g/day, 15+ g/day), age at first birth/parity (nulliparous, age at first birth <25, age at first birth 25 to 29, age at first birth >30), history of benign breast disease (yes/no), family history of breast cancer (yes/no).
^cMultivariate adjusted for the following: age, BMI, alcohol consumption, age at first birth/parity, history of benign breast disease, family history of breast cancer, postmenopausal status/hormone use (premenopausal, never user, current user, past user).
^dp value based on genotype coded as ordinal variable regressed on square root transformed MD.

ISSN: 1465-542X