Model pD DIC
M1: All variables fixed 21808.642 24.659 21857.960
M2: All variables fixed + spatial effect 21728.681 47.053 21822.787
M3: All variables fixed + spatial + community +
house hold effect
20622.962 425.056 21473.073
M4:All categorical fixed + nonlinear of continuous variable
+ spatial + community + house hold effect
20291.970 440.535 21173.041
Table 1: Summary of diagnostic accuracy of the four models.