Reliability of novice raters in using the movement system impairment approach to classify people with low back pain

Sharon M. Henry, Linda R. Van Dillen, Andrea R. Trombley, Justine M. Dee, Janice Y. Bunn

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Observational cross sectional study.To examine the inter-rater reliability of novice raters in using the Movement System Impairment (MSI) approach system and to explore the patterns of disagreement in classification errors. The inter-rater reliability of individual tests items used in the MSI approach is moderate to good; however, the reliability of the classification algorithm has been tested only preliminarily.Using previously recorded patient data (n = 21), 13 novice raters classified patients according to the MSI schema. The overall percent agreement using the kappa statistic as well as the agreement/disagreement among pair-wise comparisons in classification assignments were examined.There was an overall 87.4% agreement in the pairs of classification judgments with a kappa coefficient of 0.81 (95% CI: 0.79, 0.83). Raters were most likely to agree on the classification of Flexion (100%) and least likely to agree on the classification of Rotation (84%).The MSI classification algorithm can be learned by novice users and with training, their inter-rater reliability in applying the algorithm for classification judgments is good and similar to that reported in other studies. However, some degree of error persists in the classification decision-making associated with the MSI system, in particular for the Rotation category.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalManual Therapy
Volume18
Issue number1
DOIs
StatePublished - Feb 1 2013

Keywords

  • Classification of low back pain
  • Reliability
  • Subgrouping of low back pain

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