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 | – | 1.36 (1.04, 1.80)* | – | 1.35 (1.02, 1.78)* |
18–23 | – | 1.29 (0.94, 1.77) | – | 1.27 (0.92, 1.73) |
24–60 | – | 1 | – | 1 |
Random-effects | ||||
Community variance | 0.5994* | 0.5717* | 0.3552* | 0.3376* |
ICC (%) | 15.41 | 14.80 | 9.74 | 9.31 |
PCV (%) | – | 4.62 | 40.74 | 43.68 |
Model fit statistics | ||||
AIC | 1415.8 | 1422.0 | 1413.2 | 1419.3 |
Log-likelihood | -705.9 | -695.0 | -702.6 | -691.7 |