Figure 3.
The association of dietary lutein intake with ER+ (A) and ER− (B) breast cancer risk, overall and by menopausal status, adjusted for age, education, BMI, family history of breast cancer, age at menarche, parity, age at first birth, menopausal status, HT use, and duration of oral contraceptive use, smoking status, alcohol use, and total energy intake. I2 = 15.1% for premenopausal ER+ and 24.4% for overall ER+; I2 = 0 for all other estimates (all P > 0.05). Abbreviations: BWHS, Black Women's Health Study; ER−, estrogen receptor negative; ER+, estrogen receptor positive; HT, hormone therapy; MEC, Multiethnic Cohort Study; Q, quintile; WCHS, Women's Circle of Health Study.