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Table 6 Distributions of the risk factors among the EPIC women by country

From: Risk prediction for estrogen receptor-specific breast cancers in two large prospective cohorts

  France Italy Spain UK Netherlands Greece Germany Sweden Denmark Norway Total
n = 68,707 n = 27,851 n = 20,298 n = 35,349 n =22,601 n = 11337 n = 22,085 n = 9142 n = 29,309 n = 3,4651 n = 281,330
Menopausal status:
 Premenopausal 54.0 49.4 54.0 46.4 39.1 35.0 48.6 61.7 22.6 69.5 48.5
 Postmenopausal 46.0 50.6 46.0 53.6 60.9 65.0 51.4 38.3 77.4 30.5 51.5
Age at menopause, years:
 ≤ 45.0 9.7 19.1 26.1 19.5 22.6 30.7 18.3 10.6 16.8 10.4 17.2
 45.1–50.0 20.4 43.9 39.1 29.2 35.6 36.0 33.6 32.7 33.5 22.5 30.9
 50.1–55.0 21.7 28.3 28.0 22.2 29.2 26.2 26.2 18.2 27.5 9.9 24.1
 > 55.0 3.5 2.5 2.8 3.2 3.2 2.5 3.0 3.1 3.9 0.0 3.0
 Missinga 44.7 6.2 4.0 26 9.4 4.6 20 35.4 18.3 57.2 24.8
FTP:
 0 (no) 9.0 12.1 9.8 15.5 13.2 8.6 13.5 4.5 11.6 8.5 10.9
 1 (yes) 83.8 86.6 89.4 80.8 85.5 90.8 86.2 57.4 88.0 91.5 85.2
 Missing 7.2 1.3 0.8 3.7 1.3 0.6 0.3 38.1 0.4 0.0 3.9
Number of FTP:
 1 18.4 24.9 9.1 15.6 6.9 11.3 29.6 13.8 17.7 13.3 16.8
 2 49.4 49.9 37.4 49.9 31.3 55.2 49.2 47.4 51.4 49.2 47.5
 ≥ 3 32.2 25.2 53.5 34.3 33.3 33.4 21.2 37.9 30.9 37.5 33.3
 Missingb 0.0 0.0 0.0 0.2 28.5 0.1 0.0 0.9 0.0 0.0 2.4
Age at 1st FTP, years:
 ≤ 20 9.8 8.7 10.4 11.8 10.0 23.3 20.2 17.1 23.6 21.5 14.6
 20.1–25.0 53.1 43.6 52.2 42.2 45.1 41.5 47.3 45.5 46.4 45.9 47.3
 25.1–30.0 27.8 34.6 30.3 31.8 34.8 25.0 23.1 25.9 22.5 23.6 28.1
 31.1–35.0 7.0 10.2 5.5 10.1 7.9 6.8 7.1 6.2 5.0 6.8 7.4
 > 35.0 2.0 2.7 1.5 3.6 2.2 2.3 2.2 1.6 1.3 2.2 2.2
 Missingb 0.3 0.2 0.1 0.5 0.0 1.1 0.1 3.7 1.2 0.0 0.4
Breastfeeding, months:
 0 27.7 16.8 11.2 15.8 13.6 11.1 16.9 0 6.9 5.7 15.5
 0.1–6.0 47.2 39.6 33.0 40.1 34.6 31.2 59.6 0 43.8 26.5 39.7
 6.1–12.0 14.0 23.4 21.1 16.2 13.1 16.2 13.8 0 26.1 24.0 18.0
 > 12.0 5.4 20.0 34.4 22.6 9.8 40.3 9.2 0 21.0 42.2 19.7
 Missingb 5.7 0.2 0.3 5.3 28.9 1.2 0.5 100 2.2 1.6 7.1
Age at menarche, years:
 ≤ 11 17.0 23.2 18.1 19.2 10.7 9.7 10.8 6.1 8.9 8.5 14.6
 12 24.6 25.0 19.6 18.1 19.9 22.5 21.9 12.0 13.6 19.8 20.7
 13 26.0 24.3 23.8 23.9 23.9 25.9 25.5 17.9 22.4 28.7 25.0
 14 20.6 17.6 22.4 19.0 21.8 20.1 23.0 15.1 25.2 24.4 21.1
 ≥ 15 11.2 8.5 16.1 14.3 21.6 20.7 18.6 11.4 26.2 17.1 15.6
 Missing 0.6 1.4 0.0 5.5 2.1 1.1 0.2 37.5 3.7 1.5 3.0
HRT:
 1 (yes) 31.0 17.2 11.3 31.7 22.5 5.6 38.5 14.0 43.9 31 28.0
 0 (no) 68.3 81.1 85.7 64.9 74.5 93.8 25.7 45.4 54.2 69 66.4
 Missing 0.7 1.7 3.0 3.4 3.0 0.6 35.8 40.6 1.9 0 5.6
Duration of HRT, years:
 ≤ 1.0 26.4 55.2 62.0 30.0 38.0 62.0 21.6 19.2 27.9 18.3 29.2
 1.1–2.0 21.0 11.7 17.1 14.1 13.8 13.5 11.3 12.3 10.2 13.3 14.8
 2.1–3.0 14.0 8.3 6.6 10.8 9.3 5.9 10.3 7.6 8.2 10.0 10.6
 > 3.0 38.6 17.1 12.0 37.9 31.8 16.8 50.7 20.5 52.7 30.1 38.0
 Missingc 0.0 7.7 2.3 7.2 7.1 1.8 6.1 40.4 1.0 28.3 7.4
Height, cm, median 161 158 156 162 164 156 163 164 164 167 162
BMI, kg/m2:
 < 25.0 77.2 46.9 21.1 58.2 50.6 20.9 47.4 57.3 51.1 64.2 56.0
 2.05–29.9 18.5 37.5 43.7 30.3 36.4 38.4 34.6 31.5 34.6 27.7 30.4
 30.0–34.9 3.5 11.8 25.3 8.5 10.1 27.8 13.1 8.3 10.6 6.4 10.1
 ≥ 35.0 0.8 3.8 9.9 3.0 2.9 12.9 4.9 2.9 3.7 1.7 3.5
Alcohol intake, drinks/day:
 0 14.0 22.4 53.3 7.4 17.1 35.3 4.6 16.4 2.7 21.0 17.0
 < 1.0 54.4 46.6 34.2 69.5 56.4 57.2 70.8 82.9 58.2 77.5 59.8
 1.0–1.9 18.0 16.6 8.5 10.9 14.6 5.4 14.9 0.7 20.8 1.5 13.0
 ≥ 2.0 13.6 13.1 4.0 6.4 11.4 1.6 9.6 0 18.2 0 9.3
 Missing 0 1.3 0 5.8 0.5 0.5 0.1 0 0.1 0 0.9
  1. Values are percentages unless otherwise indicated
  2. BMI body mass index, EPIC European Prospective Investigation into Cancer and Nutrition, FTP full-term pregnancy, HRT hormone replacement therapy
  3. aAmong postmenopausal women
  4. b‡Among parous women (FTP = 1)
  5. cAmong HRT users