AI Article Synopsis
- A prospective test-retest study was conducted with 102 new and 42 follow-up low back pain patients to evaluate the reliability of the Low Back Outcome Score.
- The study found a high internal consistency with a Cronbach alpha of 0.85 and test-retest reliability of 84%.
- Results show that the Low Back Outcome Score is reliable and can effectively be used in clinical settings for assessing low back pain.
Article Abstract
Study Design: A prospective test-retest study was conducted to investigate both new and follow-up patients with low back pain presenting to an orthopedic surgeon specializing in back pain.
Objectives: To further validate the internal consistency and test-retest reliability of the Low Back Outcome Score, and to compare these results with other condition-specific disability scales.
Summary Of Background Data: To be useful in clinical practice, health-specific questionnaires must demonstrate reliability and validity. Several disease-specific questionnaires for low back pain have been validated to different extents.
Methods: In this study, 102 new and 42 follow-up patients consecutively attending a consultant clinic completed the Low Back Outcome Score on their visit, then again after an interval of 1 week in postal form. This instrument also was completed by 230 patients presenting to a physiotherapist.
Results: A response rate of 90% was achieved for the postal questionnaire. A test of internal consistency conducted with the study sample achieved a Cronbach alpha coefficient of 0.85. Overall agreement for test-retest reliability was 84%, and the reliability coefficient (K) reached a range of 0.51 to 0.86 (P < 0.05). A Bland/Altman plot was calculated, demonstrating that only 5% of patient scores change by more than 11.6 scale points between test and retest, which is not sufficient to change outcome categories.
Conclusion: The Low Back Outcome Score appears to have good internal consistency and test-retest reliability for use in clinical practice.
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| http://dx.doi.org/10.1097/00007632-200201150-00017 | DOI Listing |
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