TABLE V. Model selection for risk factors associated with Trypanosoma cruzi seropositive reactions in dogs from Trinidad de Las Minas, western Republic of Panama.

Selection round	Risk factors	QIC	ΔQIC
0a	Npalms + DSR + dog poor physical condition, dog sex, dog age	31.55	1.40
1	Npalms + DSR + age + sex	30.76	0.61
2	Npalms + DSR + age	30.15	-

a: full model; DSR: domestic animal species richness; Npalms: palms in the peridomicile of the focal household and/or any of its two closest neighbours; QIC: Pan's quasi-likelihood information criterion; ΔQIC: difference between each model QIC with that of the model with minimum QIC. Best model is bolded.