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Table 2 Parameter estimates in the Zero-inflated negative binomial regression model for childhood mortality among female partners

From: Prevalence and determinants of childhood mortality in Nigeria

Variable

IRR

Std.err

95% CI

P

Age (years)

1.081

0.004

1.073–1.089

<0.001***

Region

 North Central (ref)

1

   

 North East

1.215

0.114

1.012–1.460

0.037***

 North West

1.383

0.123

1.161–1.647

<0.001***

 South East

1.760

0.203

1.405–2.205

<0.001***

 South South

1.341

0.145

1.086–1.657

0.007***

 South West

1.364

0.140

1.117–1.667

0.002***

Residence

 Urban (ref)

1

   

 Rural

1.283

0.083

1.130–1.458

<0.001***

Education

 No Education (ref)

1

   

 Primary

0.733

0.046

0.648–0.830

<0.001***

 Secondary

0.603

0.048

0.515–0.705

<0.001***

 Tertiary

0.541

0.074

0.413–0.707

<0.001***

Wealth Index

 Poorest (ref)

1

   

 Poorer

0.973

0.053

0.875–1.083

0.619

 Middle

0.889

0.071

0.760–1.040

0.141

 Richer

0.625

0.054

0.527–0.742

<0.001***

 Richest

0.510

0.059

0.406–0.641

<0.001***

Age at 1st birth (years)

0.926

0.006

0.914–0.938

<0.001***

Religion

 Christianity (ref)

1

   

 Islam

1.184

0.108

0.990–1.416

0.064

 Traditionalist

1.432

0.142

1.179–1.740

<0.001***

Employment

 No (ref)

1

   

 Yes

1.096

0.054

0.996–1.207

0.061

  1. ***Significant at p < 0.05; IRR = Incidence-rate ratios. Vuog test of ZINB vs standardized negative binomial z = 4.97; p < 0.001. McFadden Pseudo R2 = 0.322