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Table 5 Intercept variance, Intra-class Correlation Coefficient (ICC) and model characteristics from random-intercept Weibull survival regression models of the risk of infant, child and under-five mortality across the EAG and non-EAG regions of India

From: Differential in infant, childhood and under-five death clustering among the empowered and non-empowered action group regions in India

Infant Death Clustering
Measures Non-EAG Region EAG Region
Null Model Full Model Null Model Full Model
Level 2: Mother
 Variance 1.56 0.96 0.99 0.69
 Intraclass Correlation Coefficient (ICC %) 20.91 13.81 14.04 10.25
Level 1: Children
Variance 5.91 5.98 6.04 6.01
Weibull Regression Shape Parameter (γ)*** 0.53 0.52 0.52 0.52
Likelihood Ratio Test*** 4123.32 940.86 5933.48 1799.09
No of mothers 237,069 237,069 238,388 238,388
No of births 580,737 580,737 717,280 717,280
Child Death Clustering
Measures Non-EAG Region EAG Region
Null Model Full Model Null Model Full Model
Level 2: Mother
 Variance 1.89 1.39 1.21 0.94
 Intraclass Correlation Coefficient (ICC %) 24.51 18.81 15.05 11.93
Level 1: Children
 Variance 5.81 5.98 6.86 6.94
Weibull Regression Shape Parameter (γ)*** 0.53 0.52 0.49 0.49
Likelihood Ratio Test*** 834.86 478.38 1296.23 791.28
No of mothers 237,069 237,069 238,388 238,388
No of births 580,737 580,737 717,280 717,280
Under-5 Death Clustering
Measures Non-EAG Region EAG Region
Null Model Full Model Null Model Full Model
Level 2: Mother
 Variance 1.436 0.938 0.837 0.583
 Intraclass Correlation Coefficient (ICC %) 9.76 6.53 6.06 4.29
Level 1: Children
 Variance 13.278 13.431 12.984 13.017
Weibull Regression Shape Parameter (γ)*** 0.35 0.35 0.36 0.36
Likelihood Ratio Test*** 4984.38 1339.94 6451.55 2047.43
No of mothers 237,069 237,069 238,388 238,388
No of births 580,737 580,737 717,280 717,280
  1. Note – (1) Null model is an empty model without any covariates. (2) Full model contains all the covariates. (3) Infant death means death within 0–11 months. (4) Child death means death within 12–59 months. (5) Under-5 death means death within 0–59 months. (6) *** denotes p-value < 0.001