Skip to main content

Table 2 Hazard ratios of overall breast cancer across tertiles of BMIa

From: Obesity as risk factor for subtypes of breast cancer: results from a prospective cohort study

  Postmenopausal non-users of HTb Postmenopausal users of HTb Pre- and perimenopausal womenb
Cases (n) HR CI (95%) Cases (n) HR CI (95%) Cases (n) HR CI (95%)
Tertile 1 14 1   65 1   141 1  
Tertile 2 43 1.87 (1.00,3.49) 92 0.97 (0.70,1.34) 85 0.76 (0.57,1.00)
Tertile 3 79 2.28 (1.23,4.16) 56 0.69 (0.47,1.00) 82 0.93 (0.70,1.24)
Per 5 kg/m 2   1.27 (1.07,1.50)   0.80 (0.66,0.98)   0.98 (0.85,1.12)
p trend   0.005    0.024    0.72  
  1. Median (p25, p75) values of BMI: Tertile 1: 21.4 (20.4, 22.3), Tertile 2: 24.8 (23.9, 25.7); Tertile 3: 29.9 (28.1, 32.7)
  2. aFrom Cox regression models adjusted for height, number of full-term pregnancies, pill use, education level, smoking status, and study center
  3. bAt baseline (HT hormone therapy)