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Table 2 Neonatal mortality model

From: The effect of solid fuel use on childhood mortality in Nigeria: evidence from the 2013 cross-sectional household survey

Variables (Model 0)n (Model 1)‴ (Model 2)^~
HR (95% CI) HR (95% CI) HR (95% CI)
Residence type    
Urban Ref Ref  
Rural 1.36(1.13―1.65) 1.30(1.07―1.58) 1.32(1.06―1.64)
Household wealth index    
Rich Ref   
Poor 1.43(1.09―1.88)   
Middle 1.14(0.86―1.52)   
Mother's education    
Secondary or higher Ref   
No education 1.26(1.01―1.56)   
Primary 1.20(0.94―1.52)   
Mother's working status    
Not working Ref   
Working 0.76(0.64―0.91)   
Mother's age    
40―49 Ref Ref  
< 20 3.14(2.09―4.70) 3.17(2.12―4.74) 3.16(2.12―4.74)
20―29 1.11(0.81―1.51) 1.22(0.90―1.66) 1.22 0.90―1.65)
30―39 0.90(0.64―1.24) 0.99(0.71―1.37) 0.98(0.71―1.36)
Mother's perceived baby size    
Average or larger Ref Ref Ref
Small or very small 1.95(1.63―2.34) 1.86(1.55―2.24) 1.86(1.55―2.24)
Sex    
Female Ref Ref Ref
Male 1.31(1.11―1.55) 1.33(1.13―1.57) 1.33(1.13―1.64)
Breastfeeding currently    
Yes Ref Ref Ref
No 1.98(1.64―2.38) 2.12(1.76―2.55) 2.12(1.75―2.55)
Location of kitchen    
Separate building Ref Ref Ref
Outdoors 0.88(0.68―1.15)   
House 1.15(0.92―1.44)   
Cooking fuel    
Non-Solid fuel Ref   Ref
Solid fuel 1.16(0.91―1.47)   1.01(0.73―1.26)
  1. ^Independent variables adjusted were: place of residence, wealth index, child size, child’s gender, currently. Breastfeeding and mother’s (education, working status, age); nModel 0 – unadjusted independent variables; ‴Model 1 – independent variables associated with neonatal mortality; Model 2 – Model 1 plus type of cooking fuels; ~Missing values were excluded from model 0, 1, and 2.