Table 4. Logistic regression model of independent predictors of death among all admitted newborns.
Variables | Bivariate analysis | P-value | Multivariable analysis with all variables into the model | P-value | Multivariable analysis after backward LR elimiation | P-value |
---|---|---|---|---|---|---|
OR (95%CI) | AOR (95%CI) | AOR (95%CI) | ||||
Gestational age (weeks) | 97 (0.92–1.03) | 0.34 | 0.99 (0.87–1.13) | 0.91 | ||
Birth weight (kg) | 0.79 (0.62–1.02) | 0.05 | 0.58 (0.31–1.08) | 0.08 | 0.64 (0.48–0.84) | 0.036 |
Gender | ||||||
Female | 1 | |||||
Male | 1.47 (0.98–2.19) | 0.06 | 1.50 (0.96–2.37) | 0.07 | ||
Foetal heart rate | ||||||
Normal | 1 | |||||
Abnormal | 1.30 (0.73–2.34) | 0.36 | 1.20 (0.63–2.36) | 0.55 | ||
Amniotic fluid colour | ||||||
Normal | 1 | 1 | ||||
Thick meconium | 1.43 (0.87–2.36) | 0.15 | 1.48 (0.67–3.26) | 0.33 | ||
PPV attempted | ||||||
No | 1 | 1 | ||||
Yes | 1.81 (1.22–2.69) | 0.003 | 1.49 (0.68–3.24) | 0.31 | ||
Apgar score 5 minute | ||||||
≥7 | 1 | 1 | 1 | |||
<7 | 4.76 (2.94–7.70) | <0.001 | 2.81 (1.17–6.70) | 0.020 | 3.20 (1.42–7.22) | 0.005 |
Oxygen saturation on admission | ||||||
≥90% | ||||||
60–89% | 3.04 (1.75–5.28) | 3.06 (1.47–6.41) | 0.003 | 3.10 (1.50–6.43) | 0.002 | |
<60% | 6.36 (3.34–12.10) | 4.53 (1.92–10.71) | 0.001 | 4.73 (2.02–11.13) | 0.001 |
PPV, positive pressure ventilation; OR, odds ratio; AOR, adjusted odds ratio; CI, confidence interval; LR, logistic regression. Temperature not included in the model because of missing data