Determinants of primary care physicians' referral pattern: a structural equation model approach.

Int J Public Pol 2010 Jan;5(2/3):259-271

Department of Health Administration, College of Health Professions, Governors State University, University Park, IL 60466-097, USA, , E-mail:

This study examines patient referrals by primary care physicians (PCP) with nurse practitioners and physician assistants (NP-PA) in their medical practices as compared to practices without them. The study uses data from the Robert Wood Johnson Foundation community tracking study (CTS) Physician Survey, Round I (1996-97) and II (1998-99). Structural equations with binary dependent variables were used to examine the links among managed care, the use of NP-PA, the complexity of patient's conditions, and the number of referrals. PCP's with NP-PA were found to have a greater likelihood of treating patients with complex conditions instead of referring them to specialists. Managed care related variables (i.e., large group practice/HMO, the percentage of patients for whom PCPs acted as gatekeepers, and the percentage of managed care revenue from capitated/prepaid contracts) affected PCP' patient referrals, but only through the increased use of NP-PA. PCP's with NP-PA were also found to provide appropriate care to the complex patients. These findings indicate that NP-PA enable PCP to concentrate on patients with more complex conditions thus reducing the number of referrals. In addition, NP-PA is found to affect the gatekeeper role of PCPs.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2846366PMC
http://dx.doi.org/10.1504/ijpp.2010.030607DOI Listing
January 2010
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