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Table 3 The adjusted and unadjusted hazard ratios from fitting the Cox-proportional hazard model for only those covariates that satisfy the proportionality hazard assumption

From: Application of random survival forests in understanding the determinants of under-five child mortality in Uganda in the presence of covariates that satisfy the proportional and non-proportional hazards assumption

Variable Unadjusted HR [95% CI] Adjusted HR [95% CI] p-values
Father’s education
 Illiterate 1 1  
 Primary 0.89 \(\left[ 0.74, 1.08\right]\) 0.92 \(\left[ 0.76,1.12\right]\) 0.43
 Secondary and higher 0.67 \(\left[ 0.48, 0.92\right]\) 0.72 \(\left[ 0.51 , 1.01\right]\) 0.06
Sex of the child
 Male 1   
 Female 0.83 \(\left[ 0.69, 0.99\right]\) 0.83 \(\left[ 0.69,0.99\right]\) 0.04
Age at first birth    
 <20 1 1  
 20–29 0.84 \(\left[ 0.68, 1.02\right]\) 0.86 \(\left[ 0.69,1.06\right]\) 0.16
 30+ 1.52 \(\left[ 0.49,4.73\right]\) 1.59 \(\left[ 0.51,5.02\right]\) 0.42
Sex of household head
 Male 1 1  
 Female 1.30 \(\left[ 1.07 , 1.59\right]\) 1.33 \(\left[ 1.09, 1.63\right]\) 0.01
Number of births in the past 1 year
 No birth 1 1  
 1 birth 1.18 \(\left[ 0.98,1.43\right]\) 1.22 \(\left[ 1.01,1.48\right]\) 0.04
 2 births 2.34 \(\left[ 0.97,5.67\right]\) 2.57 \(\left[ 1.06,6.25\right]\) 0.04
Mother’s age (years)
 <20 1 1  
 20–29 0.66 \(\left[ 0.45 ,0.98\right]\) 0.71 \(\left[ 0.48,1.05\right]\) 0.08
 30–39 0.74 \(\left[ 0.50,1.10\right]\) 0.79 \(\left[ 0.53,1.19\right]\) 0.27
 40+ 0.90 \(\left[ 0.57,1.43\right]\) 0.99 \(\left[ 0.62,1.59\right]\) 0.98
Source of drinking water
 Piped water 1 1  
 Borehole 1.24 \(\left[ 0.96, 1.62\right]\) 1.12 \(\left[ 0.86,1.48\right]\) 0.39
 Well water 1.17 \(\left[ 0.86 , 1.58\right]\) 1.06 \(\left[ 0.78,1.45\right]\) 0.69
Surface/pond/lake/rain/etc 1.44 \(\left[ 1.04, 1.98\right]\) 1.28 \(\left[ 0.91,1.79\right]\) 0.15
 Others 1.32 \(\left[ 0.82, 2.13\right]\) 1.21 \(\left[ 0.75,1.94\right]\) 0.44
Religion
 Catholic 1 1  
 Muslim 1.01 \(\left[ 0.77,1.33\right]\) 1.02 \(\left[ 0.77,1.34\right]\) 0.91
 Other Christians 0.91 \(\left[ 0.75,1.11\right]\) 0.94 \(\left[ 0.77,1.14\right]\) 0.51
 Others 0.717 \(\left[ 0.27,1.93\right]\) 0.67 \(\left[ 0.25,1.81\right]\) 0.43