Table 2. Output summary for barangay-level vaccination coverage GLMM.
| Fixed Effects | Estimate | Standard Error | z-value |
|---|---|---|---|
| Intercept | 0.708 | 0.749 | 0.946 |
| Island (Negros) | 0.606 | 0.852 | 0.946 |
| Island (Panay) | −0.891 | 0.814 | −1.094 |
| Random Effects | Variance | |
|
| Municipality | 0.634 | ||
| Barangay | 2.286 | ||
This model, with binomial errors, was selected as having the best fit to the data based on likelihood ratio tests (taking a test P-value of <0.05 to show significant support for the more complex of two nested models). Results were obtained from a sample of 100 barangays (5 from each of 20 municipalities). A random intercept was incorporated for each municipality, and also for each barangay/observation to overcome overdispersion. The factor level to which fixed effect values refer is specified in brackets.