Univariate analysis of risk factors for EONS
| EONS | |||||
|---|---|---|---|---|---|
| Putative risk factor | Present (n=85) | Absent (n=516) | OR | 95% CI | p Value |
| Gestation <30 weeks | 40 (47) | 105 (20.3) | 3.48 | 2.1 to 5.8 | <0.0001 |
| Birth weight <1500 g | 60 (70.5) | 206 (39.9) | 3.6 | 2.1 to 6.1 | <0.0001 |
| Per vaginal examinations ≥3 | 8 (9.4) | 9 (1.7) | 5.85 | 2.0 to 17.2 | <0.0001 |
| Male sex | 62 (72.9) | 287 (55.6) | 2.15 | 1.3 to 3.7 | 0.003 |
| Received intrapartum antibiotics | 12 (14.1) | 125 (24.2) | 1.95 | 1.02 to 3.7 | 0.039 |
| Small for gestational age | 25 (29.4) | 104 (20.1) | 1.7 | 0.9 to 2.8 | 0.054 |
| Clinical chorioamnionitis | 3 (3.5) | 4 (0.7) | 4.68 | 0.82 to 25.28 | 0.06 |
| Preterm premature rupture of membranes | 27 (31.7) | 124 (24.0) | 1.5 | 0.9 to 2.5 | 0.13 |
| Prolonged rupture of membranes (>18 h) | 17 (20) | 73 (14.1) | 1.52 | 0.8 to 2.8 | 0.16 |
| Prolonged duration of labour (>18 h) | 5 (5.9) | 47 (9.1) | 0.62 | 0.2 to 1.7 | 0.32 |
| Apgar score <4 at 5 min | 2 (2.4) | 10 (1.9) | 1.20 | 0.3 to 4.3 | 0.67 |
| Maternal fever | 0 | 6 (1.1) | 0 | 0 to 5.74 | 0.317 |
| Foul smelling liquor | 0 | 2 (0.3) | 0 | 0 to 24.96 | 0.73 |
| Spontaneous premature onset of labour | 46 (54.1) | 273 (52.9) | 1.1 | 0.7 to 1.7 | 0.83 |
EONS, early onset neonatal sepsis.