Figure 3. Adjusted Odds Ratios (ORs) From Multivariable Models of Variables Associated With Hospitalization From the Emergency Department (ED) Index Visit.

Estimates for infectious agent are from a secondary model using 1471 participants for whom stool testing results were available and excluding those with parasites. Estimates for a preceding health care practitioner visit with no intravenous (IV) rehydration and a preceding health care practitioner visit with IV rehydration are from a secondary model using 1690 participants with information about prior visits. All other estimates are from a model using 1692 participants in which the largest variance inflation factor was 1.28. Intraclass correlation within sites was 0.09.