Inter-observer reliability of the Spondylitis Functional Index Instrument for assessing spondylarthropathies.

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Publication Type Journal Article
School or College College of Health; School of Medicine
Department Physical Therapy; Internal Medicine; Exercise & Sport Science
Creator Cannon, Grant W.; Clegg, Daniel O.; Moncur, Carolee; Willardson, Debra
Other Author Shaw, Merlene
Title Inter-observer reliability of the Spondylitis Functional Index Instrument for assessing spondylarthropathies.
Date 1996-06
Description OBJECTIVE: To study the Spondylitis Functional Index (SFI) by having two physical therapists observe patients with spondylitis perform various tasks listed on the instrument. The physical therapists' observations were compared with each other and with the self-reported abilities of the patients. METHODS: Subjects (n = 30) were recruited from a cross-section of patients participating in a prospective randomized, multicenter, double-blind, parallel clinical trial of the efficacy of sulfasalazine on ankylosing spondylitis (n = 13), psoriatic arthritis (n = 13), and Reiter's syndrome (n = 4) conducted at the Veterans Affairs Medical Center in Salt Lake City. Percents of agreement and Cohen's kappa analysis were used to assess the reliability of the observations of the therapists and patients. RESULTS: The overall percent of agreement between the observers on the SFI was 93%. The overall percent of agreement between observer 1 and patients on the SFI was 66% and between observer 2 and patients was 67%. The overall inter-observer reliability measured by the Pearson coefficient was 0.91 and by Cohen's kappa was 0.86. Between observer 1 and the patients the Pearson was r = 0.53 and kappa = 0.39. For observer 2 the Pearson was r = 0.52 and kappa 0.39. CONCLUSIONS: We consider the agreement and reliability between observers to be high. The agreement and inter-observer reliability was poor between observers and patients. The SFI, as enhanced for use in this study to assess change in functional ability of patients with spondylitis, demonstrated high reliability when used by trained observers.
Type Text
Publisher Lippincott, Williams & Wilkins
Volume 9
Issue 3
First Page 182
Last Page 188
Subject Spondylitis Functional Index (SFI); physical therapists; sulfasalazine
Subject MESH Physical Therapy (Specialty); Spondylitis; Activities of Daily Living
Language eng
Bibliographic Citation Moncur C, Cannon GW, Shaw M, Willardson D, Clegg DO. Inter-observer reliability of the Spondylitis Functional Index Instrument for assessing spondylarthropathies. Arthritis Care Res. 1996 Jun;9(3):182-8.
Rights Management Copyright © Wolters Kluwer, Arthritis Care Res. 1996 Jun;9(3):182-8.
Format Medium application/pdf
Identifier ir-main,730
ARK ark:/87278/s6vt2958
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 702317
Reference URL https://collections.lib.utah.edu/ark:/87278/s6vt2958
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