Multivariate analysis of risk for HER2-positive breast cancer of 1,567 subjects in the first set.

BMI, body mass index; OR, odds ratio; CI, confidence interval.*the overall P value is 0.001 for the additive model.#for continuous variables, younger age at menarche and higher BMI are risk.OR and 95% CI calculated by logistic regression, adjusted for age, age at menarche, menopausal status, BMI, and family history of breast cancer. CC genotype is as reference in the additive and dominant model, CC+CG genotype as reference in the recessive model. Additive model, dominant model, and recessive model are tested respectively. The P-values and ORs with 95% CIs of co-variables are from logistic regression with additive model of rs4919510.