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. 2017 Jun 5;177(8):1213–1216. doi: 10.1001/jamainternmed.2017.1630

Figure. Trends in Care by Nurse Practitioners (NPs) and Physician Assistants (PAs) to Specialist Physician Patients, 2001-2013.

Figure.

A, Unadjusted trends from 2001 to 2013 in visits with NPs and PAs as a percentage of all outpatient visits to medical and surgical specialist physicians.B, The same trends as a percentage of all “new” and “return” patient visits, respectively. C, The same trends by reason for visit. The P value for linear growth by bivariate survey-weighted logistic regression is .001 or less for all subcategories except the “preventive” visit reason, where P = .01. Error bars indicate 95% CIs incorporating survey weights and clustering from the multistage sampling design of National Ambulatory Medical Care Survey (NAMCS).