Performance of health-status scales when used selectively or within multi-scale questionnaire

Christina Gummesson, Isam Atroshi, Charlotte Ekdahl

Research output: Contribution to journalArticlepeer-review

9 Citations (SciVal)

Abstract

BACKGROUND: Little work has been done to investigate the suggestion that the use of selected scales from a multi-scale health-status questionnaire would compromise reliability and validity. The aim of this study was to compare the performance of three scales selected from the SF-36 generic health questionnaire when administered in isolation or within the entire SF-36 to patients with musculoskeletal disorders. METHODS: Two groups of patients referred to an orthopedic department completed a mailed questionnaire within 4 weeks prior to and a second questionnaire during their visit. The first group completed three SF-36 scales related to physical health (physical functioning, bodily pain, and general health perceptions) on one occasion and all eight SF-36 scales on the other occasion. The second group completed the entire SF-36 on two occasions. Results for patients who reported unchanged health status and had complete scores were analyzed; 80 patients in the first and 62 patients in the second group. RESULTS: The Cronbach alpha reliability and intraclass correlation coefficients exceeded 0.7 for all three scales for both groups. For the first group the mean difference between the scores was 0.4 point for physical functioning, 2.5 points for bodily pain, and 0.5 point for general health perceptions, which did not differ significantly from the corresponding differences for the second group (0.1, 1.9 and 1 point, respectively). CONCLUSION: The use of selected scales from a multi-scale health-status questionnaire seems to yield similar results compared to their use within the entire questionnaire.
Original languageEnglish
JournalBMC Medical Research Methodology
Volume3
Issue number3
DOIs
Publication statusPublished - 2003

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Department of Health Sciences (013220000), Division of Physiotherapy (Closed 2012) (013042000)

Subject classification (UKÄ)

  • Health Care Service and Management, Health Policy and Services and Health Economy

Fingerprint

Dive into the research topics of 'Performance of health-status scales when used selectively or within multi-scale questionnaire'. Together they form a unique fingerprint.

Cite this