Table 2. Comparison of Neonatal variables between the two groups.
| Twins (N = 32) |
Singletons (N = 121) |
P value |
|
|---|---|---|---|
| Gestational age* (week) | 29.3±4.3 | 28.6±3.8 | 0.343 |
| ≤28 weeks (%) | 16(50.0) | 66(54.5) | 0.867 |
| ≤32 weeks (%) | 22(68.8) | 89(79.3) | 0.288 |
| Birth weight* (g) | 1,415.3±713.6 | 1,417.4±671.4 | 0.987 |
| VLBW (< 1,500 g) (%) | 22(68.8) | 74(61.2) | 0.430 |
| ELBW (< 1,000 g) (%) | 13(40.6) | 46(38.0) | 0.787 |
| Apgar score at 1 min.* | 3.3±2.6 | 4.0±2.3 | 0.161 |
| Apgar score at 5 min.* | 5.0±2.9 | 5.7±2.2 | 0.054 |
| RDS (%) | 21(65.6) | 72(59.5) | 0.528 |
| BPD (%) | 10(41.7) | 45(42.1) | 0.972 |
| PDA with treatment† (%) | 6(25.0) | 20(18.7) | 0.484 |
| Early sepsis (%) | 3(9.4) | 8(6.6) | 0.590 |
| Abnormal brain sonography‡(%) | 6(25.0) | 22(20.8) | 0.648 |
| Survival during NICU stay (%) | 24(75.0) | 107(88.4) | 0.054 |
| Death within 7 days after birth | 8(25.0) | 7(5.8) | 0.001 |
* Values are means±SD.
Abbreviations: VLBW, very low birth weight; ELBW, extremely low birth weight; RDS, respiratory distress syndrome; BPD, bronchopulmonary dysplasia; PDA, patent ductus arteriosus; NICU, neonatal intensive care unit
†PDA treated with medication and/or ligation
‡Intraventricular hemorrhage (≥grade 2)±periventricular leukomalacia