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Assessment of the Quality of Cost Analysis Literature in Physical Therapy

L.E. Peterson is Senior Research Analyst, The Lewin Group, Falls Church, Virginia.
C. Goodman, PhD, is Senior Vice President, The Lewin Group, 3130 Fairview Park Dr, Falls Church, VA 22042 (USA).
E.K. Karnes is an MBA/MPH candidate, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins Carey Business School, Baltimore, Maryland.
C.J. Chen, MHS, is an Associate, The Lewin Group.
J.A. Schwartz is an MD candidate, Stanford University School of Medicine, Stanford, California.

Address all correspondence to Dr Goodman at: clifford.goodman{at}lewin.com

Background: Policy makers, payers, and other stakeholders increasingly call for greater evidence of the cost-effectiveness of health care interventions.

Objective: The purposes of this study were to identify and rate the quality of cost analysis literature in physical therapy and to report summary information on the findings from the reviewed studies.

Design: This study was a targeted literature review and rating of relevant studies published in the last decade using a quality evaluation tool for economic studies.

Measurements: The Quality of Health Economic Studies (QHES) instrument was used to obtain quality scores.

Results: Ninety-five in-scope studies were identified and rated using the QHES instrument. The average quality score was 82.2 (SD=15.8), and 81 of the studies received a score of 70 or higher, placing them in the "good" to "excellent" quality range. Investigators in nearly two thirds of the studies found the physical therapy intervention under investigation to be cost-effective.

Limitations: The small number of studies meeting the inclusion criteria was a limitation of the study.

Conclusions: The quality of the literature regarding the cost-effectiveness of physical therapy is very good, although the magnitude of this body of literature is small. Greater awareness of the strengths and limitations of cost analyses in physical therapy should provide guidance for conducting high-quality cost-effectiveness studies as demand increases for demonstrations of the value of physical therapy.

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This article has been cited by other articles:

				R. L. Craik A Responsibility to Put "Health Policy in Perspective" Physical Therapy, November 1, 2009; 89(11): 1114 - 1115. [Full Text] [PDF]

				C. Maher PRISMA: Helping to Deliver Information That Physical Therapists Need Physical Therapy, September 1, 2009; 89(9): 870 - 872. [Full Text] [PDF]