Table 1.

Relative bias and RMSE of the disease risks predicted using the reduced model in the first scenario.

Contam Factor (a)	AB NE(b)		AB E(c)		BB NE
	Relative bias	RMSE	Relative bias	RMSE	Relative bias	RMSE
0	-0.0030	0.0179	0.0098	0.039	-0.0007	0.0168
0.2	-0.1481	0.022	-0.0510	0.0424	-0.0342	0.016
0.4	-0.2928	0.0326	-0.1346	0.0471	-0.0792	0.0162
0.6	-0.4346	0.0452	-0.2032	0.0567	-0.0959	0.0165
0.8	-0.5725	0.0582	-0.2980	0.0710	-0.1374	0.0173
Contam Factor	BB E		AA NE		AA E
	Relative bias	RMSE	Relative bias		Relative bias	RMSE
0	0.0157	0.0381	0.0065	0.0383	0.0087	0.0647
0.2	0.068	0.0393	-0.0173	0.039	0.0379	0.0704
0.4	0.1038	0.0421	-0.0299	0.0405	0.0730	0.0770
0.6	0.2151	0.0479	-0.0456	0.0412	0.1302	0.094
0.8	0.3071	0.0559	-0.0695	0.0452	0.1819	0.1132

(a) Proportion of individuals in the contaminated category who get the disease with a very low probability (0.01). (b) Not exposed to the environmental factor. (c) Exposed to the environmental factor.