Table 5.
Monthly Fecundity and Cumulative Pregnancy Rates
| Treatment | Monthly Fecundity (f) (%) | Cumulative Pregnancy Rates (F) (%) |
| Tubocornual anastomosis | 7 | 57 |
| Midsegment reanastomosis | 12 | 79 |
| Distal occlusion | ||
| Adhesiolysis | 6 | 52 |
| Fimbrioplasty | 5 | 47 |
| Neosalpingostomy | 2.5 | 26 |
| IVF (3 cycles, all ages) | 35 | 72 |
IVF, in vitro fertilization.
Postsurgical cumulative pregnancy rates assume that all the pregnancies occurred in a year.
Calculations are based on the formula F = 1 ‒ (1 ‒ f)n, where n is the number of months of exposure.49