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Am J Manag Care. 1999 Jun;5(6):727-34.

Continuity of care: is it cost effective?

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Children's Medical Center, University of Oklahoma, Tulsa 74135, USA.



To examine the association between the degree of healthcare provider continuity and healthcare utilization and costs.


A longitudinal, prospective, observational study.


Data on patients with arthritis, asthma, epigastric pain/peptic ulcer disease, hypertension, and otitis media were collected at each of 6 health maintenance organizations (HMOs). Outcome variables included the number of prescriptions for the target disease and the cost, total number of prescriptions and the cost, the number of outpatient visits, and the number of hospital admissions. Disease-specific severity of illness, type of visit, and provider information were obtained at each encounter. HMO profit status, visit copay, gatekeeper strictness, formulary limitations, use of multisource (generic) drugs, gender, number of months in the study, age, and severity of illness were controlled in the analyses.


There were 12,997 patients followed for more than 99,000 outpatient visits, 1000 hospitalizations, and more than 240,000 prescriptions. Increasing the number of primary or specialty care providers a patient encountered during the study generally was associated with increased utilization and costs when HMO and patient characteristics were controlled. The number of specialty care providers also increased as the number of primary care providers increased. The incremental increase in pharmacy costs per patient per year with each additional provider ranged between $19 in subjects with otitis media to $58 in subjects with hypertension.


Continuity of care was associated with a reduction in resource utilization and costs. As healthcare delivery systems are designed, care continuity should be promoted.

[Indexed for MEDLINE]
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