| All times of unprotected intercourse (n = 249) | TUIb ≥ 1 month (n = 207) | Women who planned a baby (n = 196) | |||
---|---|---|---|---|---|---|
Variable | FRe | 95Â % CI | FRe | 95%CI | FRe | 95%CI |
Serum-DDE:c | ||||||
 2.5–7.4 μg/L | 1.61 | 0.90, 2.86 | 1.36 | 0.67, 2.76 | 1.62 | 0.88, 2.97 |
  > 7.4 μg/L | 1.67 | 0.69, 4.07 | 1.35 | 0.42, 4.34 | 1.72 | 0.67, 4.43 |
Serum-PCB:c | ||||||
 2.5–7.4 μg/L | 0.60 | 0.36, 0.99 | 0.73 | 0.40, 1.33 | 0.50 | 0.28, 0.89 |
  > 7.4 μg/L | 0.42 | 0.20, 0.88 | 0.58 | 0.20, 1.67 | 0.30 | 0.13, 0.68 |
Pelvic and genital infections before the TUI | 1.00 | 0.62, 1.63 | 0.84 | 0.47, 1.49 | 1.02 | 0.59, 1.76 |
Smoking at the beginning of TUI | 0.59 | 0.21, 1.64 | 0.43 | 0.13, 1.42 | 0.79 | 0.17, 3.63 |
Partner smoking at the beginning of TUI | 2.09 | 1.20, 3.63 | 2.13 | 1.07, 4.25 | 1.96 | 0.90, 4.28 |
Alcohol consumption at the beginning of TUI (no. of drinks/day) d | ||||||
 0.01–0.5 | 0.95 | 0.57, 1.59 | 1.01 | 0.55, 1.87 | 0.94 | 0.54, 1.63 |
  > 0.5 | 1.40 | 0.64, 3.09 | 0.94 | 0.32, 2.78 | 1.33 | 0.51, 3.44 |
Caffeine consumption at the beginning of TUI (mg/day) d | ||||||
 100–300 | 0.72 | 0.43, 1.23 | 0.78 | 0.42, 1.44 | 0.74 | 0.40, 1.37 |
  > 300 | 0.91 | 0.54, 1.53 | 1.01 | 0.55, 1.89 | 0.68 | 0.34, 1.35 |