COMPARATIVE STUDY
JOURNAL ARTICLE
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Physician assistants in occupational medicine: how do they compare to occupational physicians?

BACKGROUND: Physician assistants (PAs) have been present in occupational and environmental medicine (OEM) in the USA since 1971, yet remarkably little is known about their activity.

METHODS: An administrative study of PA activities was undertaken and compared with the activities of physicians in the same occupational medicine setting. Patients were not triaged to either provider and all resources of care were recorded for the visit. An episode of care approach was used for the analysis.

RESULTS: The characteristics of patients seen by each provider were similar in age, gender ratio and severity of injury. Physicians saw a mean of 2.9 patients/h and PAs 2.5, but PAs worked more hours and saw more patients per year than physicians. The average charge per patient visit and total charge for an episode of care were similar. Differences between PAs and physicians were seen in the areas of 'limited duty' duration given to patients and on average PAs prescribed 15 days and physicians 17 days. PAs referred a patient 19.7% of the time, while physicians referred 17.4%. Most of the referrals were to physical therapy. The salary of a physician, based on an hourly rate, was approximately twice as much as a PA.

CONCLUSION: The use of PAs in OEM may represent a cost-effective advantage from an administrative standpoint. Clearly, more research is necessary in determining the role and utilization of PAs in OEM and how they may improve the delivery of physician services.

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