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Table 2 Characteristics of women providing time to pregnancy interviews (n = 2269) and men providing semen samples (n = 798).

From: Fertility in four regions spanning large contrasts in serum levels of widespread persistent organochlorines: a cross-sectional study

  Warsaw Kharkiv Greenland Sweden
  Women
N = 472
Men
N = 198
Women
N = 640
Men
N = 208
Women
N = 598
Men
N = 201
Women
N = 559
Men
N = 191
Age, mean (SD) 29 (4) 30 (4) 25 (5) 26 (5) 27 (6) 31 (7) 29 (5) 47 (10)
Employed, % 89 97 61 75 51 83 70 95
Body mass index, kg/m2, mean (SD) 21 (3) 26 (3) 22 (3) 24 (3) 25 (4) 26 (5) 25 (4) 27 (3)
Current smoking, % 19 27 22 66 73 72 31 23
Alcoholic beverage consumption, drinks/ week, mean (SD) 2 (3) 6 (6) 1 (8) 3 (2) 2 (6) 9 (14) 1 (3) n.a
Coffee, cups/week, mean (SD) 1 (1) 2 (2) 2 (1) 2 (2) 2 (3) 5 (5) 3 (3) n.a
Urogenital infectionsa, % 14 5 13 5 85 83 27 21
Urogenital disordersb, % 21 3 12 3 7 1 44 2
Primi parity, % 91 - 79 - 31 - 4 -
Intercourse daily, % 18 - 19 - 42 - 4 -
  1. a) Chlamydia infection, gonorrhoea, other sexually transmitted diseases or for women: Pelvic infections after delivery; for men: epididymitis or mumps in adulthood.
  2. b) For women: Ovarian cysts, fibroids, myomas, endometriosis, cancer therapy and surgery on uterus, salpinges or ovaries. For men: Treatment for retracted testis, varicocele, testicular torsion, and testicular cancer.