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In 2001 an estimated 103,612 nurse practitioners (NPs) and physician assistants (PAs) were in clinical employment in the United States. The roles of PAs and NPs in providing comparable physician services are similar; they differ in that NPs are predominantly in primary care, while PAs are divided between primary and specialty care. PA and NP education processes also differ in the student pool and trends in the output. The combined number of graduates totaled 11,585 in 2001. However, the annual number of NP graduates is declining, while the number of PA graduates is increasing. These observations have implications for the future in the types of patients they see and the degree of health care services they provide.
Hooker et al. (Sun,) studied this question.