Comparison of infants with neonatal fever before (1991) and after (1992) introduction of routine hepatitis B immunisation
| 1991 group | 1992 group | p Value | |
|---|---|---|---|
| Total infants | 5010 | 5819 | |
| Neonatal fever above 37.5°C | 27 | 68 | 0.001 |
| Neonatal fever above 38.0°C | 27 | 50 | 0.05 |
| Explained neonatal fever | 13 | 15 | NS |
| Unexplained neonatal fever | 14 | 35 | 0.013 |