Variable | Model-I (Null model) | Model-II ARR (95% CI) | Model-III ARR (95% CI) | Model-IV ARR (95% CI) |
---|---|---|---|---|
Fixed-effects | ||||
Inter-pregnancy interval in months | ||||
< 18 | – | 2.26 (1.39, 3.68)** | – | 2.20 (1.35, 3.58)** |
18–23 | – | 1.54 (0.91, 2.59) | – | 1.48 (0.88, 2.50) |
24–60 | – | 1 | – | 1 |
Random-effects | ||||
Community variance | 0.7632* | 0.5051* | 0.4451* | 0.3509* |
ICC (%) | 18.83 | 13.31 | 11.92 | 9.64 |
PCV (%) | – | 33.82 | 41.68 | 54.02 |
Model fit statistics | ||||
AIC | 767.7 | 770.7 | 764.9 | 769.6 |
Log-likelihood | -381.9 | -369.4 | -378.5 | -366.8 |