Table 2.
Cumulative probability of conceiving a clinical pregnancy by the number of cycles of insemination
| Woman’s age, years | ICI using thawed semen (Schwartz et al 1982)2 | Woman’s age, years | ICI using fresh semen (van Noord-Zaadstra et al, 1991)3 | Woman’s age, years |
IUI using thawed semen (HFEA data and personal communication)
|
|||
|---|---|---|---|---|---|---|---|---|
| 6 cycles | 12 cycles | 6 cycles | 12 cycles | 6 cycles | 12 cycles | |||
| <30 | 50% | 70% | <31 | 58% | 76% | — | — | — |
| 30–34 | 43% | 62% | 31–35 | 50% | 71% | <35 | 63% | 86% |
| >34 | 33% | 54% | >35 | 39% | 55% | 35–39 | 50% | 75% |
ICI = intracervical insemination. IUI = intrauterine insemination. From NICE guideline 156.