Table 4 Neonatal outcomes of 0PN singletons after single blastocyst transfers in two groups
|  |  < 6 cells | P-Value |  ≥ 6 cells | P-Value | ||
|---|---|---|---|---|---|---|
|  | 0PN (N = 7) | 2PN (N = 348) | 0PN (N = 85) | 2PN (N = 902) | ||
Mean gestational age (weeks) | 38.1 ± 1.8 | 38.2 ± 1.8 | 0.954 | 37.9 ± 2.2 | 38.2 ± 1.8 | 0.115 |
Birthweight (g) | 3,457.9 ± 411.6 | 3,313.5 ± 504.7 | 0.517 | 3,324.2 ± 550.4 | 3,276.0 ± 598.8 | 0.397 |
  VLBW (< 1500 g) | 0 (0/7) | 1.1 (4/348) | 1.000 | 1.2 (1/85) | 1.2 (11/902) | 1.000 |
  LBW (< 2500 g) | 0 (0/7) | 3.4 (12/348) | 1.000 | 7.1 (6/85) | 5.2 (47/902) | 0.638 |
  HBW (> 4500 g) | 0 (0/7) | 0.6 (2/348) | 1.000 | 1.2 (1/85) | 1.0 (9/902) | 1.000 |
Z-score | 0.89 ± 0.90 | 0.42 ± 1.02 | 0.161 | 0.50 ± 1.23 | 0.47 ± 1.11 | 0.861 |
VSGA rate (%) | 0 (0/7) | 0.9 (3/348) | 1.000 | 3.5 (3/85) | 1.8 (16/902) | 0.476 |
SGA rate (%) | 0 (0/7) | 3.7 (13/348) | 1.000 | 5.9 (5/85) | 4.2 (38/902) | 0.658 |
LGA rate (%) | 42.9 (3/7) | 19.8 (69/348) | 0.305 | 21.2 (18/85) | 22.2 (200/902) | 0.832 |
VLGA rate (%) | 0 (0/7) | 9.5 (33/348) | 0.843 | 12.9 (11/85) | 9.9 (89/902) | 0.369 |
Malformation rate (%) | 0 (0/7) | 2.6 (9/348) | 1.000 | 2.4 (2/85) | 1.8 (16/902) | 1.000 |