Table 5.
Observed vs Expected Live Births
| Age | Transfers | Pregnancies | ||
| Observed | CDC 2001 Rate | Expected | ||
| < 35 | 15 | 9 (60%) | 41.1% | 6.16 |
| 35–37 | 6 | 2 (33%) | 35.1% | 2.11 |
| 38–40 | 5 | 1 (20%) | 25.4% | 1.27 |
| 41–42 | 4 | 2 (20%) | 14.5% | 0.58 |
| >42 | 3 | 1 (33%) | 6.1% | 0.18 |
| Total | 33 | 15 | 10.3 | |
Observed = rate for Manual pre-IVF treatment (study)
Expected = projected from CDC National Summary, Figure 13.[29, 32]
(Expected = Transfers times published CDC 2001 probability. For example, the published CDC 2001 live birth rate for a <35 year old woman is 41.1%, hence with 15 transfers, one expects 15 x 0.411 = 6.16 live births; the observed number was 9.)