Table 2 Simulation Study Results: Relative bias (Bias), RMSE, and 95% coverage (Cov.) of the risk difference under various spatial variances (rows) and estimation methods (columns)
Non-spatial | Spatial | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Unadjusted | Adjusted | Unadjusted | Adjusted | |||||||||
Bias | RMSE | Cov. | Bias | RMSE | Cov. | Bias | RMSE | Cov. | Bias | RMSE | Cov. | |
\(\sigma ^2_{u}=0\) | 0.043 | 0.005 | 96 | 0.040 | 0.005 | 95 | 0.035 | 0.004 | 95 | 0.050 | 0.006 | 94 |
\(\sigma ^2_{u}=2\) | 0.084 | 0.011 | 77 | 0.085 | 0.011 | 75 | 0.064 | 0.009 | 90 | 0.052 | 0.007 | 92 |
\(\sigma ^2_{u}=4\) | 0.096 | 0.012 | 70 | 0.100 | 0.012 | 66 | 0.064 | 0.008 | 93 | 0.049 | 0.006 | 95 |