Negative binomial regression models of Ascaris and hookworm reinfection intensity in Panamanian preschool children.

1Incidence Rate Ratio.2Household within identified high prevalence cluster of infection by SaTScan Spatial Scan (0 = no, 1 = yes).3NA = Not applicable.4NE = Variable was excluded during the stepwise process (p>0.10).50 = boy, 1 = girl.60 = no, 1 = yes.71/Alpha statistic indicates the degree of overdispersion in the data.*p**pVariables that did not enter any model: Household crowding.