| Variable | Category | Blood infection rate | Urinary tract infection rate | VAP infection rate | ||||||
| % | SD | P | % | SD | P | % | SD | P | ||
| Number of newborns/ nurses | <4 | 13.6 | 14.1 | 0.395 | 1.8 | 2.6 | 0.02 | 5.7 | 5.0 | 0.025 |
| 4 - 5.9 | 13.9 | 16.8 |
| 3.9 | 3.7 |
| 10.7 | 14.9 |
| |
| ≥6 | 17.5 | 20.4 |
| 15.4 | 18.2 |
| 20.4 | 25.9 |
| |