Table 2.
Immediate pregnancy and delivery outcomes of cohort by mode of conception (n = 69,084)
| Outcomes | Donor IVF (n = 262) |
p a | Autologous IVF (n = 3501) |
p b | Non-IVF (n = 65321) |
|---|---|---|---|---|---|
| Gestational age at delivery (weeks) | 38.0 (35.6–39.0) | < 0.001 | 38.0 (36.0–39.0) | < 0.001 | 39.0 (38.0–40.0) |
| Preterm delivery (< 37 weeks of gestation) | 87 (33.2) | < 0.001 | 1140 (32.6) | 7040 (10.8) | |
| Intrauterine fetal demise (IUFD) | 0 (0.0) | 0.63 | 12 (0.3) | 0.40 | 287 (0.4) |
| Gestations | < 0.001 | < 0.001 | |||
| Singleton | 167 (63.7) | 2380 (68.0) | 63898 (97.8) | ||
| Multiple | 95 (36.3) | 1121 (32.0) | 1423 (2.2) | ||
| Singletons | n = 167 | n = 2380 | n = 63898 | ||
| Sex | 0.94 | 0.64 | |||
| Female | 81 (48.5) | 1173 (49.3) | 31184 (48.8) | ||
| Male | 86 (51.5) | 1206 (50.7) | 32686 (51.2) | ||
| Unknown | 0 (0.0) | 1 (0.0) | 28 (0.0) | ||
| Birthweight (grams) | 3275 (2800–3660) | 0.07 | 3295 (2925–3625) | < 0.001 | 3360 (3025–3680) |
| Multiplesc | n = 95 | n = 1121 | n = 1423 | ||
| Sex | 0.002 | < 0.001 | |||
| Female | 25 (26.3) | 271 (24.2) | 487 (34.2) | ||
| Male | 23 (24.2) | 290 (25.9) | 479 (33.7) | ||
| Both | 47 (49.5) | 559 (49.9) | 457 (32.1) | ||
| Unknown | 0 (0.0) | 1 (0.1) | 0 (0.0) | ||
| Birthweight (grams) | 2470 (2013–2868) | 0.002 | 2314 (1793–2693) | 0.62 | 2290 (1810–2645) |
| Admission to NICUd | < 0.001 | < 0.001 | |||
| Yes | 100 (38.2) | 1141 (32.6) | 9717 (14.9) | ||
| No | 162 (61.8) | 2360 (67.4) | 55604 (85.1) |
IVF, in vitro fertilization; NICU, neonatal intensive care unit. Data presented as median (interquartile range) or n (%)
ap values comparing donor IVF and non-IVF
bp values comparing autologous IVF and non-IVF
cBirthweights combined for all infants
dAdmission defined as at least 4 hours