Figure 3. Multivariable Analysis of Predictors of Antibiotic Prescribing Among Persons With Acute Respiratory Infections and Assigned Diagnosis Codes for Which Antibiotics Are Not Indicated (Tier 3 Diagnoses Only).

^aBy International Classification of Diseases, Ninth Revision diagnosis code.

^bIndicates an International Classification of Diseases, Ninth Revision code diagnosis of influenza, not real-time reverse transcriptase–polymerase chain reaction confirmation of influenza.

^cIndicates real-time reverse transcriptase–polymerase chain reaction confirmation of influenza, which was performed for research purposes only.

^dSelf-rated health on a scale of 0 (worst) to 100 (best), analyzed as a continuous variable.