1. Variation in Outpatient Antibiotic use for Acute Respiratory Infections in the Veteran Population. Final Figures 1, 2, 3, 4, 5, 6

2. Figure 1. Study Population. All visits for acute respiratory infection at VA primary care clinics, emergency departments, and urgent care clinics during study period 2005-2012 N=2,481,520 1,276,539 excluded for comorbidities Cancers & Neoplasms (N= 259,863) Diabetes (N=608,433) COPD (N=806,897) Others (N=30,728) 93,203 excluded for infections Pneumonia (N=13,341) Urinary tract (N=10,636) Other infections (N=71,095) N=2,388,317 N=1,111,778 Final Study Population N=1,044,523 N=1,036,982 without missing values 67,255 excluded for recent ARI in the past 30 days

3. Figure 2. Temporal trends in overall antibiotic use.

4. Figure 3. Temporal trends in the proportion of all antibiotics prescribed for each antibiotic class.

5. Figure 4. Predictors of antibiotic prescribing.

6. Figure 5. Predictors of macrolide prescribing.

7. Figure 6a. Provider variation in antibiotic prescribing.

8. Figure 6b. Sources of variation in antibiotic prescribing.

9. Appendix B Figure. Conditional distribution of antibiotic prescribing. VAMCs at 10 th Percentile VAMCs at 90 th Percentile VAMCs at 50 th Percentile