Table 2. Obstetric Outcomes of Respondents.
| Before the disaster |
After the disaster |
P value ‡ | |||
|---|---|---|---|---|---|
| Without IVF-ET (n = 6,682) | IVF-ET (n = 138) | Without IVF-ET (n = 5,148) | IVF-ET (n = 102) | ||
| Pregnancies | |||||
| Gestational age at birth (weeks ± SD) | 38.9 ± 2.2 | 38.2 ± 3.6* | 38.7 ± 2.7* | 38.1 ± 4.0 | 0.49 |
| Preterm birth | |||||
| < 28 weeks | 13 (0.2) | 0 | 17 (0.3) | 2 (2.0)† | 0.18 |
| < 34 weeks | 56 (0.8) | 1 (0.7) | 62 (1.2)* | 4 (4.0)† | 0.17 |
| < 37 weeks | 265 (4.0) | 10 (7.4) | 272 (5.3)* | 13 (12.9)† | 0.16 |
| Unknown/missing | 28 | 2 | 42 | 1 | |
| Delivery mode | |||||
| spontaneous cephalic | 4,557 (69.6) | 55 (42.0)* | 3,364 (68.3) | 31 (31.3)† | 0.10 |
| instrumental | 698 (10.7) | 16 (12.2)* | 535 (10.9) | 21 (21.2)† | |
| elective cesarean | 1,295 (19.8) | 60 (45.8)* | 1,024 (20.8) | 47 (47.5)† | |
| Unknown/missing | 132 | 7 | 225 | 3 | |
| Infants | n = 6,703 | n = 147 | n = 5,152 | n = 107 | |
| Sex | |||||
| Male | 3,436 (51.7) | 80 (54.4) | 2,645 (51.9) | 61 (57.0) | 0.68 |
| Female | 3,211 (48.3) | 67 (45.6) | 2,455 (48.1) | 46 (43.0) | |
| Unknown/missing | 56 | 0 | 52 | 0 | |
| Birth weight at birth (g) | 3,024 ± 409 | 2,978 ± 440 | 2,989 ± 436* | 2,855 ± 578† | 0.25 |
| Low birth weight infant < 2,500 g | 538 (8.1) | 20 (13.6)* | 499 (9.8)* | 21 (19.6)† | 0.20 |
| Unknown/missing | 52 | 0 | 51 | 0 | |
| Congenital anomalies | 178 (2.8) | 5 (3.4) | 130 (2.6) | 3 (2.9) | 1.00 |
| Unknown/missing | 259 | 0 | 133 | 3 | |
Number in parentheses are the percentage. NA: not applicable. *P < 0.05, in relation to the without IVF-ET group before the disaster. †P < 0.05, in relation to the without IVF-ET group after the disaster. ‡Differences between the IVF-ET groups before and after the disaster.