Table 1.
Comparison of medical care costs between singleton, twin, triplet, and quadruplet pregnancies
| Control group | High‐order multiple group | Comparison using anova P‐value | |||
|---|---|---|---|---|---|
| Singleton (n = 58) | Twin (n = 21) | Triplet (n = 14) | Quadruplet (n = 1) | ||
| Gestational age at delivery (weeks) | 39.4 ± 1.7 | 35.6 ± 4.1 | 31.9 ± 2.6 | 25.1 | <0.001 |
| Length of maternal hospital stay (days) | 18.3 ± 21.5 | 46.1 ± 33.8 | 102.2 ± 33.2 | 108 | <0.001 |
| Maternal costs (× 1000 yen) | 530 ± 467 | 1124 ± 709 | 2070 ± 525 | 3522 | <0.001 |
| Birthweight (g) | 2886 ± 425 | 2117 ± 623 | 1430 ± 373 | 633 ± 77 | <0.001 |
| Length of neonatal hospital stay (days) | 9.0 ± 4.6 | 30.9 ± 38.1 | 52.9 ± 29.9 | 133 | <0.001 |
| Cost per neonate (× 1000 yen) | 173 ± 410 | 1889 ± 3061 | 3247 ± 2350 | 10 360 ± 85 | <0.001 |
| Total family cost (× 1000 yen) | 703 ± 680 | 4903 ± 6199 | 11810 ± 4869 | 44 961 | <0.001 |