Estimates obtained from multivariable conditional logistic regression models separately for US-born and foreign-born Hispanic women, with risk factors coded as shown. The overall relative risk of developing invasive breast cancer, compared with an individual of the same nativity with all risk factors at their lowest risk level, is estimated by multiplying the relative risks across risk factors. CI = confidence interval; RR = relative risk.

Tables present absolute risk estimates for various initial ages, follow-up durations, and relative risks for US-born and foreign-born Hispanic women. For example, to project invasive breast cancer risk over 20 years for a 30-year-old foreign-born Hispanic woman who had her first full-term pregnancy at age 28 years (age at first full-term pregnancy [AFP] = 1), who never had a biopsy for benign breast disease (biopsy for benign breast disease [BIOP] = 0), whose mother had breast cancer (family history of breast cancer in first-degree female relatives [FH] = 1), and who began menstruating at age 11 years (age at menarche [MEN] = 2). From Table 1, the woman’s relative risk is 1.60 (for AFP = 1) x 1.00 (for BIOP = 0) x 2.48 (for FH = 1) x 1.68 (for MEN = 2) = 6.67. As shown in the table, the woman’s 20-year absolute risk is between 2.56% for relative risk 5 and 5.06% for relative risk 10. By linear interpolation, the approximate risk is 2.56 + (5.06–2.56)(6.67–5.00)/(10–5) = 3.40%.