Table 3.
Multivariate adjusted relative risks (RR) of breast cancer according to ethnicity, comparing different groups defined by menopausal and hysterectomy status
| Ethnicity | All womena | Excluding women with simple hysterectomy | ||||
|---|---|---|---|---|---|---|
| Cases | RRb | (95% CI) | Cases | RRb | (95% CI) | |
| White | 491 | 1.0 | 390 | 1.0 | ||
| African American | 320 | 1.01 | (0.86-1.16) | 232 | 1.07 | (0.90-1.27) |
| Native Hawaiian | 182 | 1.72 | (1.44-2.06) | 153 | 1.80 | (1.48-2.20) |
| Japanese American | 596 | 1.19 | (1.04-1.35) | 527 | 1.25 | (1.08-1.44) |
| Latina - US born | 169 | 0.92 | (0.77-1.10) | 125 | 0.94 | (0.76-1.16) |
| Latina - not US born | 104 | 0.77 | (0.61-0.96) | 90 | 0.83 | (0.65-1.06) |
a
Premenopausal women, women with natural menopause, and women with simple hysterectomy
b
Adjusted for age, BMI, family history in a mother or sister, education, alcohol consumption, age at menarche, age at first birth, number of children, duration of current estrogen with progestin use, duration of current estrogen only use, and duration of past estrogen with progestin use