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...Oswestry low back pain disability questionnaire sources fairbank jct pynsent pb the index spine davidson m keating j a comparison of five questionnaires reliability and responsiveness physical therapy also known as is an extremely important tool that researchers evaluators use to measure patient s permanent functional test considered gold standard outcome tools scoring instructions for each section total possible score if first statement marked last it all sections are completed calculated follows example scored x one missed or not applicable minimum detectable change confidence points less than this may be attributable error in measurement interpretation scores minimal can cope with most living activities usually no treatment indicated apart from advice on lifting sitting exercise moderate experiences more difficulty standing travel social life difficult they disabled work personal care sexual activity sleeping grossly affected managed by conservative means severe remains main problem...