Fig. 1.

Variation among providers in adjusted rates of antibiotic prescribing for respiratory tract infection. Rateswere adjusted by age, sex, race, temperature, systolic and diastolic blood pressure, pulse rate, body mass index, oxygen saturation, smoking status, history of diabetes mellitus, asthma diagnosis, congestive heart failure, end-stage renal disease, income, and insurance. Each line represents the confidence interval for a single provider. Red lines are significantly different from the mean.