Table 4.
Neonatal Outcomes After FET According To The Type Of Endometrial Preparation Treatments
| Characteristics | Letrozole (n=931) | HMG (n=952) | Letrozole+HMG (n=1363) | P-Valuea | P-Valueb | P-Valuec | P-Vlued | P-Valuee | P-Valuef | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Singleton Births (n=531) | Multiple Births (n=400) | Singleton Births (n=508) | Multiple Births (n=444) | Singleton Births (n=885) | Multiple Births (n=478) | |||||||
| Stillborn- no (%) | 0(0) | 2(0) | 0(0) | 0(0) | 1(0.11) | 0(0) | ||||||
| Live born- no (%) | 531(100) | 398(99.5) | 508(100) | 444(100) | 884(0.89) | 478(0100) | ||||||
| Gestational weeks at delivery (weeks) |
||||||||||||
| <32 | 6(1.12%) | 4(2.00%) | 6(1.18%) | 8(1.80%) | 5(0.56%) | 10(2.09%) | 0.892 | 0.346 | 0.491 | 0.341 | 0.056 | 0.925 |
| 32–36 | 33(6.22%) | 92(46.00%) | 28(5.51%) | 232(52.25%) | 58(6.55%) | 212(44.35%) | ||||||
| ≥37 | 492(92.66%) | 104(52.00%) | 474(93.31%) | 204(45.95%) | 822(92.89%) | 256(53.56%) | ||||||
| Birth weight (g) | ||||||||||||
| <1500 | 5(0.94%) | 8(2.00%) | 5(0.98%) | 6(1.35%) | 4(0.45%) | 8(1.67%) | 0.831 | 0.108 | 0.291 | 0.154 | 0.857 | 0.086 |
| 1500–2499 | 22(4.14%) | 115(28.75%) | 25(4.92%) | 154(34.68%) | 27(3.05%) | 171(35.77%) | ||||||
| ≥2500 | 504(94.92%) | 277(69.25%) | 478(94.10%) | 284(63.97%) | 853(96.38%) | 299(62.56%) | ||||||
| Sex of neonates | ||||||||||||
| Male | 258(48.59%) | 208(52.00%) | 253(49.81%) | 231(52.03%) | 438(49.49%) | 236(49.37%) | 0.371 | 0.478 | 0.392 | 0.524 | 0.231 | 0.241 |
| Female | 273(51.41%) | 192(48.00%) | 255(50.19%) | 213(47.97%) | 447(50.51%) | 242(50.63%) | ||||||
| Mode of delivery | ||||||||||||
| Vaginal | 122(22.98%) | 14(3.50%) | 134(26.38%) | 10(2.26%) | 243(27.46%) | 14(2.93%) | 0.115 | 0.355 | 0.069 | 0.189 | 0.332 | 0.386 |
| Cesarean section | 409(77.02%) | 386(96.50%) | 374(73.62%) | 434(97.74%) | 642(72.54%) | 464(97.07%) | ||||||
Notes: aLetrozole singleton births vs HMG singleton births; bHMG singleton births vs letrozole+HMG singleton births. cLetrozole singleton births vs letrozole+HMG singleton births; dLetrozole multiple births vs HMG multiple births. eHMG multiple births vs letrozole+HMG multiple births. fLetrozole multiple births vs letrozole+HMG multiple births.