Random effect | Model 0 | Model I | Model II | Model III |
---|---|---|---|---|
PSU variance (95% CI) | 4.81 (4.14–5.58) | 3.67 (3.08–4.38) | 3.28 (2.79–3.85) | 3.65 (3.07–4.34) |
ICC | 0.59 | 0.52 | 0.50 | 0.52 |
Wald chi-square and p-value | Ref | χ2 = 398.44, p < 0.001 | χ2 = 390.58, p < 0.001 | χ2 = 518.64, p < 0.001 |
Model fitness | ||||
Log-likelihood | -12242.85 | -9159.73 | -11897.726 | -9140.49 |
AIC | 24489.71 | 18367.47 | 23813.45 | 18340.98 |
N |