Table 2.
Comparison between IUI and FET outcomes prepandemic versus pandemic
| Description | Period; no (%) |
χ 2P valuea | χ 2 Y P valueb | |
|---|---|---|---|---|
| Prepandemic | Pandemic | |||
| IUI | n = 617 | n = 634 | ||
| GS on ultrasound | 76 (12.3) | 74 (11.7) | 0.725 | 0.791 |
| Positive FH | 71 (11.5) | 68 (10.7) | 0.660 | 0.726 |
| Positive β-hCG | 89 (14.4) | 83 (13.1) | 0.494 | 0.547 |
| FET | n = 260 | n = 318 | ||
| GS on ultrasound | 113 (43.5) | 149 (46.9) | 0.725 | — |
| Positive FH | 81 (31.2) | 108 (34.0) | 0.660 | — |
| Positive β-hCG | 113 (55.8) | 183 (57.5) | 0.668 | — |
β-hCG: chorionic gonadotropin; FET: frozen embryo transfer; FH: fetal heart; GS: gestational sac; IUI: intrauterine insemination.
a
P value for χ2 comparison.
b
P value for χ2 comparison with Yates correction.