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. 2017 Jul 6;125(7):077004. doi: 10.1289/EHP943

Figure 1.

Figure 1A is a comparative horizontal histogram indicating measured 25(OH)D in nanograms per milliliter (y-axis) across proportion (x-axis) for the random subcohort versus the cases . Figure 1B is a forest plot indicating results for the measured sample as a whole, for premenopausal women, and for postmenopausal women. a cohort including overall women, premenopausal women, and postmenopausal women. The HRs for quartiles 1, 2, 3, and 4 are 0 to 24.6, greater than 24.6 to 31.4, greater than 31.4 to 38.0, and greater than 38.4 nanograms per milliliter, respectively.

Distribution of 25(OH)D in cases and random subcohort (A). Hazard ratios and 95% confidence intervals for the association between 25(OH)D and breast cancer incidence within 5 y in the Sister Study (B). The hazard ratios are adjusted for batch, seasonal trends, race, education level, current hormonal birth control use, current hormone therapy use and type, menopausal status, physical activity, body mass index (BMI), osteoporosis, and a BMI × menopausal status interaction term. There are 1,600 cases and 1,822 participants in the random subcohort (including 67 cases) with complete covariate information (total n=3,355).