Table 2. History of TOPs of Finnish first-time mothers in 1996–2013 by their methods.
| History of TOPs | Medical TOP (n = 13450) |
Surgical TOP (n = 38659) |
Both TOP (n = 2414) |
Total (n = 54523) |
P-value* |
|---|---|---|---|---|---|
| % | % | % | % | ||
| Number of TOPs | |||||
| 1 | 90.6 | 87.5 | 0.0 | 84.4 | <0.0001 |
| 2 | 8.1 | 10.5 | 71.3 | 12.6 | |
| ≥3 | 1.3 | 2.0 | 28.7 | 3.0 | |
| Gestational age at TOP | |||||
| <12 weeks | 77.0 | 90.4 | 61.4 | 85.8 | <0.0001 |
| ≥12 weeks | 23.0 | 9.6 | 38.6 | 14.2 | |
| Year of last TOP | |||||
| 1987–1994 | 3.3 | 33.1 | 4.9 | 23.9 | <0.0001 |
| 1995–1998 | 3.3 | 29.4 | 7.2 | 21.4 | |
| 1999–2003 | 25.0 | 28.2 | 28.9 | 27.4 | |
| 2004–2013 | 68.3 | 9.2 | 59.1 | 27.3 | |
| Difference between first birth and last TOP | |||||
| 5–38 months | 50.2 | 24.6 | 53.4 | 32.8 | <0.0001 |
| 39–81 months | 35.4 | 33.0 | 34.0 | 33.7 | |
| 82–310 months | 14.4 | 42.4 | 12.6 | 33.5 | |
*P-value from chi square test and statistical significance at the level of 0.05