Table.

Likelihood ratios for comparing estimators of 13-year-old populations (n=45,290) in 34 counties in Oregon for potential Oregon ALERT IIS immunization rate denominators, 2013^a

^aBased on comparison with Oregon annual review of school immunization compliance data

^bSignificant at p<0.05

^cSignificant at p<0.001

^dRatio inverses are not presented.

IIS = Immunization Information System

AIRA-MIROW = American Immunization Registry Association Modeling of Immunization Registry Operations Workgroup

NA = not applicable