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J Orthop Sports Phys Ther. 2012 Jan;42(1):30-42. doi: 10.2519/jospt.2012.3727. Epub 2011 Oct 25.

The patient-specific functional scale: psychometrics, clinimetrics, and application as a clinical outcome measure.

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1
School of Physiotherapy, University of Otago, New Zealand.

Abstract

STUDY DESIGN:

Systematic review of the literature.

OBJECTIVE:

To summarize peer-reviewed literature on the reliability, validity, and responsiveness of the Patient-Specific Functional Scale (PSFS), and to identify its use as an outcome measure.

METHODS:

Searches were performed of several electronic databases from 1995 to May 2010. Studies included were published articles containing (1) primary research investigating the psychometric and clinimetrics of the PSFS or (2) the implementation of the PSFS as an outcome measure. We assessed the methodological quality of studies included in the first category.

RESULTS:

Two hundred forty-two articles published from 1994 to May 2010 were identified. Of these, 66 met the inclusion criteria for this review, with 13 reporting the measurement properties of the PSFS, 55 implementing the PSFS as an outcome measure, and 2 doing both of the above. The PSFS was reported to be valid, reliable, and responsive in populations with knee dysfunction, cervical radiculopathy, acute low back pain, mechanical low back pain, and neck dysfunction. The PSFS was found to be reliable and responsive in populations with chronic low back pain. The PSFS was also reported to be valid, reliable, or responsive in individuals with a limited number of acute, subacute, and chronic conditions. This review found that the PSFS is also being used as an outcome measure in many other conditions, despite a lack of published evidence supporting its validity in these conditions.

CONCLUSION:

Although the use of the PSFS as an outcome measure is increasing in physiotherapy practice, there are gaps in the research literature regarding its validity, reliability, and responsiveness in many health conditions.

PMID:
22031594
DOI:
10.2519/jospt.2012.3727
[Indexed for MEDLINE]

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