Table 2 General characteristics of study subjects
From: Nosocomial infection in a newborn intensive care unit (NICU), South Korea
|  | Characteristics | N | % | Mean ± SD |
|---|---|---|---|---|
Gender | ||||
| Â | Male | 250 | 51.1 | Â |
| Â | Female | 239 | 48.9 | Â |
Birth weight (g) | ||||
| Â | >2500 | 109 | 22.3 | Â |
|  | 1501–2500 | 245 | 50.1 |  |
|  | 1001–1500 | 100 | 20.4 |  |
|  | ≤1000 | 35 | 7.2 | 1983 ± 773 |
Gestational age (weeks) | ||||
|  | ≥37 | 92 | 18.8 |  |
|  | 32–36 | 255 | 52.1 |  |
|  | 28–31 | 113 | 23.1 |  |
|  | ≤27 | 29 | 5.9 | 33.6 ± 3.6 |
Apgar score at 1 minute | ||||
|  | ≥ 8 | 138 | 28.2 |  |
|  | 4–7 | 259 | 53.0 |  |
|  | < 4 | 92 | 18.8 | 5.8 ± 2.4 |
Apgar score at 5 minute | ||||
|  | ≥ 8 | 239 | 48.9 |  |
|  | 4–7 | 228 | 46.6 |  |
|  | < 4 | 22 | 4.5 | 7.2 ± 1.7 |
Delivery type | ||||
| Â | Vaginal | 182 | 37.2 | Â |
| Â | Caesarean Section | 307 | 62.8 | Â |
Medical department | ||||
| Â | Pediatrics | 448 | 91.6 | Â |
| Â | Neurosurgery | 7 | 1.4 | Â |
| Â | General surgery | 34 | 7.0 | Â |
Diagnosis | ||||
| Â | Hyaline membrane disease | 63 | 12.9 | Â |
| Â | Prematurity | 301 | 61.6 | Â |
| Â | Congenital anomaly | 112 | 22.9 | Â |
| Â | Others* | 13 | 2.6 | Â |
Discharge status | ||||
| Â | Live to home | 409 | 83.6 | Â |
| Â | Live to other hospitals | 36 | 7.4 | Â |
| Â | Against medical advice(AMA) | 24 | 4.9 | Â |
| Â | Death | 21 | 4.3 | Â |
Hospital stay(day) |  |  |  | 29.6 ± 23.9(median : 22.4) |