Table 3.

Logistic regression models: effect of maternal age on infant mortality.

	Neonatal Mortality		Post-Neonatal Mortality
Maternal Age (years)	aOR	95% CI	aOR	95% CI
12–17	1.43	0.98, 2.08	1.73	1.14, 2.64
18–19	1.15	0.83, 1.60	1.04	0.71, 1.53
20–34	1.00	reference	1.00	reference
Non-Hispanic black	2.08	1.56, 2.78	1.45	1.02, 2.04
Age-inappropriate educational Level	1.39	1.01, 1.90	1.73	1.23, 2.44
Unmarried	1.50	1.06, 2.14	1.25	0.83, 1.88
Nulliparous	1.00	0.99, 1.02	1.01	0.99, 1.03
Tobacco Use	1.49	1.10, 2.01	1.26	0.89, 1.79
Kotelchuck Index
Unknown	4.04	2.53, 6.45	0.88	0.35, 2.21
Inadequate	1.98	1.36, 2.88	1.58	1.05, 2.39
Adequate	1.00	reference	1.00	reference
Adequate Plus	2.89	2.17, 3.85	1.89	1.35, 2.66
Poverty Status
Poorest *	0.36	0.25, 0.53	2.29	1.36, 3.86
Poor **	0.45	0.33, 0.62	1.60	0.98, 2.61
Other	1.00	reference	1.00	reference

cOR = crude odds ratio, aOR = adjusted odds ratio, CI = confidence intervals

* defined as participation in food stamps

** defined as participation in WIC or Medicaid but not food stamps