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Table 3 Geometric mean plasma levels* of E2, FSH, P4 and SHBG according to BMI among postmenopausal women not using HRT

From: Hormone replacement therapy use and plasma levels of sex hormones in the Norwegian Women and Cancer Postgenome Cohort – a cross-sectional analysis

   E2 nmol/L FSH IU/L P4 nmol/L SHBG nmol/L
  n 95% CI 95% CI 95% CI 95% CI
BMI (kg/m2)      
BMI < 25 137 0.07 (0.06–0.07) 76.7 (71.8–81.9) 0.87 (0.78–0.97) 51.8 (48.2–55.7)
25 ≤ BMI < 30 91 0.07 (0.06–0.07) 66.3 (61.2–71.9) 0.78 (0.68–0.89) 35.9 (32.8–39.2)
BMI ≥ 30 37 0.08 (0.07–0.09) 52.0 (45.8–59.1) 0.74 (0.61–0.91) 29.1 (25.3–33.5)
ANCOVA*   p = 0.08 p < 0.01 p = 0.25 p < 0.01
  1. * Adjusted for age. The covariates alcohol and parity did not contribute significantly to the model for any of the analyses, and was omitted.