Timing of conception |
| |||||||||
Before the disaster |
| After the disaster | ||||||||
9 - 7 months n = 2097 | 6 - 4 months n = 2528 | ≤3 months n = 2428 |
|
| ≤3 months n = 1728 | 4 - 6 months n = 1647 | 7 - 9 months n = 1872 | p | ||
Maternal age, y (mean ± SD) | 30.2 ± 4.9 | 30 ± 5.1 | 30.4 ± 5.0 |
|
| 29.8 ± 5.0* | 30.2 ± 5.0 | 30.4 ± 5.1 | 0.003 | |
Unknown/missing | 0 | 0 | 0 |
|
| 0 | 8 | 12 | ||
Single pregnancy | 2065 (99.2) | 2499 (99.0) | 2403 (99.1) |
|
| 1707 (99.0) | 1632 (99.1) | 1852 (98.9) | 0.967 | |
Twin pregnancy | 17 (0.8) | 25 (1.0) | 22 (0.9) |
|
| 18 (1.0) | 15 (0.9) | 20 (1.1) | ||
Unknown/missing | 0 | 0 | 0 |
|
| 0 | 0 | 0 | ||
Infertility treatment |
|
| ||||||||
Natural conception | 2006 (95.7) | 2396 (94.8) | 2318 (95.5) |
|
| 1689 (97.7)** | 1560 (94.7) | 1772 (94.7) | <0.001 | |
Ovulation stimulation | 38 (1.8) | 46 (1.8) | 42 (1.7) |
|
| 16 (0.9) | 34 (2.1) | 37 (2.0) | 0.13 | |
Artificial insemination | 15 (0.7) | 23 (0.9) | 27 (1.1) |
|
| 7 (0.4) | 10 (0.6) | 20 (1.1) | 0.111 | |
In-vitro fertilization | 38 (1.8) | 63 (2.5) | 41 (1.7) |
|
| 16 (0.9)*** | 43 (2.6) | 43 (2.3) | 0.002 | |
Unknown/missing | 0 | 0 | 0 |
|
| 0 | 0 | 0 | ||
Medical complications |
|
| ||||||||
Hypertension | 8 (0.38) | 3 (0.12) | 7 (0.29) |
|
| 3 (0.17) | 5 (0.30) | 5 (0.27) | 0.56 | |
Diabetes | 5 (0.24) | 8 (0.32) | 3 (0.12) |
|
| 5 (0.28) | 0 | 5 (0.27) | 0.257 | |
Cancer | 5 (0.24) | 12 (0.47) | 7 (0.29) |
|
| 10 (0.58) | 8 (0.49) | 10 (0.53) | 0.466 | |
Respiratory disease | 42 (2.0) | 50 (1.98) | 47 (1.94) |
|
| 41 (2.37) | 80 (4.86)† | 79 (4.22)† | <0.001 | |
Thyreoid disease | 30 (1.43) | 50 (1.98) | 30 (1.24) |
|
| 30 (1.74) | 32 (1.94) | 33 (1.76) | 0.318 | |
Mental disorder | 30 (1.43) | 44 (1.74) | 42 (1.73) |
|
| 26 (1.50) | 41 (2.49) | 59 (3.15)† | <0.001 | |
Others | 134 (6.39) | 159 (6.29) | 173 (7.13) |
|
| 109 (6.31) | 95 (5.77) | 102 (5.45) | 0.313 | |
Unknown/missing | 0 | 0 | 0 |
|
| 0 | 0 | 0 | ||