Table 3.

Multivariate Analysis from Derivation Dataset and Neonatal Mortality Score upon Admission to the Neonatal Intensive Care Unit

Characteristic	ß coefficient	OR	95% CI	p	Scorea
Admission Level of Consciousness
Alert	0	1	Reference	Reference	0
Irritable	0.92	2.51	1.16–5.43	0.02	6
Lethargic	1.77	5.87	3.82–9.02	<  0.001	11
Comatose	2.61	13.7	4.72–39.7	<  0.001	16
Admission Respiratory Distress
None	0	1	Reference	Reference	0
Mild	0.54	1.72	1.01–2.93	0.046	3
Moderate	1.70	5.49	4.00–7.55	<  0.001	11
Severe	2.23	9.30	5.89–14.7	<  0.001	14
Gestational Age, weeks
≥ 37	0	1	Reference	Reference	0
32–36	0.16	1.17	0.80–1.72	0.41	1
< 32	1.63	5.12	2.63–9.97	<  0.001	10
Birthweight, grams
≥ 2500	0	1	Reference	Reference	0
1500–2499	0.77	2.16	1.50–3.10	0.01	5
< 1500	1.89	6.61	3.39–12.9	<  0.001	12

OR = odds ratio, Intercept −1.95, ^a Score ranges from 0 to 52

Final multivariate model and points associated with the Neonatal Mortality Score