Frequency distribution of various pregnancy outcomes stratified by blood lead levels in men at the beginning of the calendar year when time to pregnancy started
| Non-exposed | Blood lead level (μg/dl) | Total | ||||
|---|---|---|---|---|---|---|
| <20 | 20–29 | 30–39 | ⩾40 | |||
| IUD, intrauterine device; TTP, time to pregnancy. | ||||||
| Pregnancies in the study | ||||||
| Alive | 138 | 27 | 23 | 31 | 33 | 252 |
| Artificial abortion | 10 | 3 | 2 | 1 | 2 | 18 |
| Stillbirth | 1 | – | – | – | 1 | 2 |
| Spontaneous abortion | 4 | 1 | – | 2 | 1 | 8 |
| Unplanned pregnancy | ||||||
| Alive | 9 | 1 | 1 | – | 1 | 12 |
| Artificial abortion | 2 | 2 | – | 1 | 1 | 6 |
| Maternal endometriosis | ||||||
| Alive | 1 | – | 1 | – | – | 2 |
| Cannot recall accurate TTP | ||||||
| Alive | 7 | 3 | 3 | 1 | 3 | 17 |
| Spontaneous abortion | 1 | – | – | – | 1 | 2 |
| Quit IUD with vaginal spotting | ||||||
| Alive | 1 | – | – | 1 | – | 2 |