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Table 3 Logistic regression models: effect of maternal age on infant mortality.

From: Socioeconomic factors and adolescent pregnancy outcomes: distinctions between neonatal and post-neonatal deaths?

  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
  1. cOR = crude odds ratio, aOR = adjusted odds ratio, CI = confidence intervals
  2. * defined as participation in food stamps
  3. ** defined as participation in WIC or Medicaid but not food stamps