From: Obstetric outcome in donor oocyte pregnancies: a matched-pair analysis
 | All pregnancies | Singletons | Twins | ||||||
---|---|---|---|---|---|---|---|---|---|
 | DO | AO | P | DO | AO | P | DO | AO | P |
Live births | 262 | 262 | Â | 148 | 148 | Â | 114 | 114 | Â |
Gestational age | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Mean gestational age | 37.29 | 37.34 | 0.82 | 38.72 | 38.74 | 0.94 | 35.40 | 35.49 | 0.50 |
 (SD) | (3.1) | (2.9) | (n = 259) | (2.3) | (2.0) | (n = 147) | (2.9) | (2.8) | (n = 112) |
 < 37 weeks of gestation | 95/262 | 82/259 | <0.001 | 21/148 | 18/147 | <0.001 | 74/114 | 64/112 | <0.001 |
 (%) | (36.3) | (31.7) |  | (14.2) | (12.2) |  | (64.9) | (57.1) |  |
 < 34 weeks of gestation | 16/237 | 20/237 | 0.60 | 4/145 | 4/145 | 1 | 12/92 | 16/92 | 0.54 |
 (%) | (6.8) | (8.4) |  | (2.8) | (2.8) |  | (13.0) | (17.4) |  |
Birth weight | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Mean birth weight | 2832.9 | 2805.3 | 0.56 | 3211.3 | 3183.4 | 0.67 | 2321.2 | 2294.1 | 0.70 |
 (SD) | (709.9) | (711.1) | (n = 254) | (593.5) | (583.4) | (n = 146) | (504.7) | (524.9) | (n = 108) |
 Birth weight | 87/256 | 77/260 | 0.28 | 13/147 | 14/147 | 0.83 | 74/109 | 63/113 | 0.11 |
 < 2500 g (%) | (34) | (29.6) |  | (8.8) | (9.5) |  | (67.9) | (55.8) |  |
 Birth weight | 7/256 | 11/260 | 0.48 | 3/147 | 2/147 | 1 | 4/109 | 9/109 | 0.27 |
 < 1500 g (%) | (2.7) | (4.2) |  | (2) | (1.4) |  | (3.7) | (8) |  |
Mean birth length | 48.1 | 48.1 | 1 | 49.7 | 49.6 | 0.81 | 45.7 | 45.8 | 0.795 |
(SD) | (3.6) | (3.5) | (n = 233) | (2.9) | (2.9) | (n = 138) | (3.2) | (3.0) | (n = 95) |
Mean head circumference | 33.6 | 33.4 | 0.31 | 34.2 | 34.2 | 0.95 | 32.7 | 32.1 | 0.10 |
(SD) | (2.3) | (2.2) | (n = 186) | (2.2) | (2.0) | (n = 113) | (2.1) | (2.0) | (n = 73) |
APGAR scores | Â | Â | Â | Â | Â | Â | Â | Â | Â |
1 minute APGAR scores | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Less than 4 | 3/224 | 5/233 | 0.73 | 2/132 | 1/133 | 1.00 | 1/92 | 4/100 | 0.63 |
 | (1.3) | (2.1) | (n = 201) | (1.5) | (0.8) | (n = 120) | (1.1) | (4.0) | (n = 40) |
 Less than 7 | 30/224 | 26/233 | 0.46 | 19/132 | 10/133 | 0.076 | 11/92 | 16/100 | 0.34 |
 | (13.4) | (11.2) | (n = 201) | (14.4) | (7.5) | (n = 120) | (12.0) | (16.0) | (n = 40) |
5 minute APGAR scores | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Less than 4 | 0/224 | 1/230 | 1.00 | 0/132 | 0/131 | NA | 0/92 | 1/99 | 1.00 |
 | (0) | (0.4) | (n = 201) | (0) | (0) |  | (0) | (1.0) | (n = 41) |
 Less than 7 | 4/224 | 4/230 | 1.00 | 3/132 | 1/131 | 0.63 | 1/92 | 3/99 | 1.00 |
 | (1.8) | (1.7) | (n = 201) | (2.3) | (0.8) | (n = 118) | (1.1) | (3.0) | (n = 41) |
10 minute APGAR scores | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Less than 4 | 0/217 | 0/194 | NA | 0/131 | 0/118 | NA | 0/86 | 0/76 | NA |
 | (0) | (0) |  | (0) | (0) |  | (0) | (0) |  |
 Less than 7 | 0/217 | 2/194 | 0.50 | 0/131 | 1/118 | 1.00 | 0/86 | 1/75 | 1.00 |
 | (0) | (1.0) | (n = 163) | (0) | (0.8) | (n = 105) | (0) | (1.3) | (n = 29) |