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Abstract
Many systems have been suggested for classifying low back pain (LBP); the most commonly used among physiotherapists involves a pathoanatomical/pathophysiological tissue classification system. Few studies have examined whether this form of classification of LBP disorders can be performed in a reliable manner between specialists with advanced training, or between specialists with advanced training and non-specialists who lack advanced training. The purpose of this paper was to examine the inter-tester reliability of two specialists, and the ability of a specialist and non-specialist to independently classify patients with LBP, utilizing clinical tests and history-based classification methods after a short educational course on the classification system. Subjects were acute or sub-acute patients with LBP who visited their occupational healthcare or municipal healthcare center. Inter-tester reliability between the specialist and non-specialists was at almost the same level: overall Kappa 0.60 (95%CI; 0.40 to 0.85), overall agreement 70%, as between the two specialists: overall Kappa 0.65 (95%CI; 0.33-0.86), overall agreement 77%. The findings suggest that a short educational course can provide rather reliable examination tools to allow non-specialized physiotherapists to classify patients according to tissue origination.