Table 2 Cox regression model for infant death hazard ratios

 No education (RC)

1

.

1

 Primary education

.78 (0.59–1.03)

.084

1.0 (.74–1.36)

0.993

 Secondary education

.46 (0.35–0.58)

.000

.72 (0.52–1.01)

0.06

 Higher education

.21 (0.10–0.42)

.000

.43 (0.20–0.94)

0.35

 Lowest quintile (RC)

1

.

1

 Second quintile

.82 (0.64–1.05)

.113

.90 (0.70–1.16)

0.405

 Third quintile

.57 (0.42–0.75)

.000

.74 (0.54–1.02)

0.063

 Fourth quintile

.40 (0.28–0.55)

.000

.62 (0.42–0.92)

0.018

 Highest quintile

.26 (0.17–0.41)

.000

.55 (0.32–0.96)

0.036

 Urban

1

.

1

 Rural

1.78 (1.40–2.27)

.000

1.19 (0.90–1.57)

0.232

 15–19 years (RC)

1

.

1

 20–39 years

1.01 (0.69–1.48)

.966

1.20 (0.81–1.77)

0.36

 40–49 years

1.29 (0.78–2.12)

.319

1.34 (0.81–2.23)

0.261

Sex of child

 Male (RC)

1

.

1

 Female

1.00 (0.82–1.22)

.985

.98 (0.81–1.20)

0.868

 Pre-term (RC)

1

.

1

 Full term

.73 (0.27–1.96)

.535

.52 (0.19–1.39)

0.191

 Home delivery (RC)

1

.

1

 Facility delivery

.51 (0.41–0.64)

.000

.82 (0.62–1.08)

0.149

 North Central (RC)

1

.

1

 Northeast

1.69 (1.20–2.38)

0.002

1.31 (0.92–1.86)

0.133

 Northwest

1.89 (1.38–2.60)

0.000

1.42 (1.01–1.99)

0.042

 Southeast

1.19 (0.78–1.82)

.423

1.71 (1.09–2.69)

0.02

 South South

.91 (0.57–1.48)

.712

1.12 (0.69–1.84)

0.645

 Southwest

.53 (0.29–0.95)

.034

.74 (0.41–1.36)

0.333