Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
PMC full text:
JAMA Intern Med. Author manuscript; available in PMC 2015 Apr 1.
Published in final edited form as:
JAMA Intern Med. 2013 Sep 23; 173(17): 1573–1581.
doi: 10.1001/jamainternmed.2013.8992

Figure 1

Adjusted * Proportions of Referrals and Selected Drugs Over Time

* This figure shows estimates adjusted for age, sex, race/ethnicity, region, insurance type, symptom duration/context, whether the provider was the PCP, and whether the visit was located in a metropolitan area.