Table 1.
Characteristics of ELBW infants in BW categories
| Characteristics | BW (g) | Total | |
|---|---|---|---|
| <750 | 750–999 | ||
| Cases, n (%) | 30 (11.6) | 228 (88.4) | 258 (100) |
| GA (weeks), mean ± SD | 27.4 ± 2.5 | 28.1 ± 2.2 | 28.1 ± 2.2 |
| BW (g), mean ± SD | 675 ± 66 | 893 ± 67 | 868 ± 97 |
| Male, n (%) | 14 (46.7) | 135 (59.2) | 149 (57.8) |
| SGA, n (%) | 20 (66.7) | 68 (29.8) | 88 (34.1) |
| Assisted reproduction, n (%) | 11 (36.7) | 39 (17.1) | 50 (19.4) |
| Survive at discharge, n (%) | 9 (30.0) | 120 (52.6) | 129 (50.0) |
| LOHS (days), median (range) | |||
| Nonsurvivor | 1 (33) | 3 (143) | 2 (143) |
| Survivor | 82 (122) | 63 (138) | 64 (138) |
| Cost of NICU stay (CNY, ×103) | |||
| Nonsurvivor, median (range) | 9.330 (1.265–67.687) | 10.244 (0.060–342.777) | 10.244 (0.060–342.777) |
| Survivor, mean ± SD | 90.686 ± 65.718 | 60.015 ± 36.580 | 62.206 ± 39.762 |
GA: Gestational age; BW: Birth weight; LOHS: Length of hospital stay; CNY: China Yuan (6.2 CNY=1 USD); SD: Standard deviation; NICU: Neonatal intensive care unit; SGA: Small for gestational age; ELBW: Extremely low birth weight.