. 2004 Dec 16;7(2):R171–R175. doi: 10.1186/bcr973

Table 2.

Relation of Q356R and breast cancer risk in the Nurses' Health Study

Genotype	Case (frequency)^a	Control (frequency)^a	OR (95% CI)	OR^b(95% CI)
Q356Q	1065 (86.23)	1413 (87.01)	1.00 (reference)	1.00 (reference)
Q356R	165 (13.36)	206 (12.68)	1.06 (0.85–1.32)	1.05 (0.84–1.32)
R356R	5 (0.4)	5 (0.31)	1.33 (0.38–4.59)	1.67 (0.44–6.35)

CI, confidence interval; OR, odds ratio.

^aSamples lacking genotype information were removed from analysis.

^bLogistic regression controlling for age, age of menopause, post-menopausal hormone use, age at first birth, parity, family history of breast cancer, and history of benign breast disease.