Skip to main content

Table 3 Type of contraception by categories of time to pregnancy (TTP). Row percentages.

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

  The pill Coil or implant Condom or diaphragm Withdrawal, safe periods, other No contra-ception Missing data
TTP defined a       
Warsaw n = 376 25 1 31 28 7 8
Kharkiv n = 307 3 1 16 40 16 24
Greenland n = 520 39 16 5 4 27 9
Sweden n = 519 25 29 25 9 0 10
Contraceptive failures b       
Warsaw n = 89 6 2 41 52 0 0
Kharkiv n = 310 5 3 35 56 0 1
Greenland n = 38 40 8 29 24 0 0
Swedenc n = 150d 29 10 15 3 0 42
Missing TTP data e       
Warsaw n = 7 0 0 43 14 29 14
Kharkiv n = 23 8 4 4 39 4 1
Greenland n = 40 25 5 5 5 18 43
Sweden n = 40 13 3 13 3 0 70
  1. a) Time from a well defined start of unprotected sexual intercourse until last menstrual period
  2. b) Became pregnant in spite of use of contraception
  3. c) Frequencies based upon first unplanned pregnancies
  4. d) The number of unplanned latest pregnancies
  5. e) Including women that became pregnant following delivery without recurrence of menstrual bleeding (n = 16)