Table 4 Multivariate analysis of the risk factors for jaundice
Association factors | Univariate analysis | Multivariate analysis | |||
|---|---|---|---|---|---|
Odds ratio | P value | Odds ratio | P value | ||
Gestational age | ≥37 weeks | 2.78 (1.29–5.97) | 0.009 | 2.82 (1.23–6.49) | 0.015 |
< 37 weeks | 1.00 (reference) | 1.00 (reference) | |||
Birth weight | ≥3.2 kg | 1.06 (0.74–1.52) | 0.746 | ||
< 3.2 kg | 1.00 (reference) | ||||
Sex | Male | 0.96 (0.67–1.38) | 0.833 | ||
Female | 1.00 (reference) | ||||
Age at admission | ≥7 days | 0.35 (0.24–0.51) | 0.001 | 0.29 (0.16–0.51) | 0.001 |
< 7 days | 1.00 (reference) | 1.00 (reference) | |||
Vaginal delivery | Yes | 1.89 (1.29–2.78) | 0.001 | 1.83 (1.20–2.8) | 0.005 |
No | 1.00 (reference) | 1.00 (reference) | |||
Perinatal problem | Yes | 1.37 (0.77–2.46) | 0.288 | ||
No | 1.00 (reference) | ||||
Exclusive breastfeeding | Yes | 2.12 (1.39–3.22) | 0.001 | 3.91 (2.36–6.49) | 0.001 |
No | 1.00 (reference) | 1.00 (reference) | |||
Reticulocyte count | ≥2% | 1.51 (1.04–2.19) | 0.029 | ||
< 2% | 1.00 (reference) | ||||
Hemoglobin level | ≥15 mg/dL | 3.56 (2.39–5.30) | 0.001 | 3.05 (1.96–4.74) | 0.001 |
< 15 mg/dL | 1.00 (reference) | 1.00 (reference) | |||
C-reactive protein | ≥5 mg/L | 0.39 (0.23–0.65) | 0.001 | 0.34 (0.20–0.61) | 0.001 |
< 5 mg/L | 1.00 (reference) | 1.00 (reference) | |||
Rotavirus test | Positive | 2.20 (1.51–3.21) | 0.001 | 1.89 (1.20–2.98) | 0.006 |
Negative | 1.00 (reference) | 1.00 (reference) | |||
Late-onset sepsis | Yes | 0.65 (0.07–5.82) | 0.645 | ||
No | 1.00 (reference) | ||||