Table 3. Incidence of perinatal outcomes among the Finnish first-time mothers in 1996–2013 by previous TOPs and methods.
| Perinatal outcomes | No prior TOP (n = 365356) |
Medical TOP (n = 13450) |
Surgical TOP (n = 38659) |
Both (n = 2414) |
Total (n = 419879) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | /1000 | n | /1000 | n | /1000 | n | /1000 | n | /1000 | |
| Extremely preterm birth <28 weeks | 1122 | 3 | 38 | 3 | 154 | 4 | 11 | 5 | 1325 | 3 |
| Very preterm birth <32 weeks | 1843 | 5 | 57 | 4 | 232 | 6 | 10 | 4 | 2142 | 5 |
| Preterm birth <37 weeks | 17041 | 47 | 515 | 38 | 1882 | 49 | 105 | 44 | 19542 | 47 |
| Very low birth weight <1500 grams | 2805 | 8 | 90 | 7 | 341 | 9 | 20 | 8 | 3256 | 8 |
| Low birth weight <2500 grams | 12439 | 34 | 417 | 31 | 1447 | 37 | 88 | 36 | 14391 | 34 |
| Small for gestational age | 17897 | 49 | 687 | 51 | 2047 | 53 | 136 | 56 | 20767 | 49 |
| Perinatal death | 1622 | 4 | 58 | 4 | 206 | 5 | 13 | 5 | 1899 | 5 |