01746nas a2200325   4500000000100000008004100001653001100042653001500053653002200068653002600090653001900116653001800135653001400153653002500167653002500192653002100217653000900238100001400247700001600261700001500277700001200292700001400304700001300318245011900331250001500450300001300465490000700478520088900485020004601374       2010                            d10aHumans10aOdds Ratio10aTreatment Outcome10aDisability Evaluation10aQuestionnaires10aLow back pain10aROC Curve10aRecovery of Function10aPatient Satisfaction10aArea Under Curve10aPain1 aSmeets R.1 aHerbert Rob1 aHancock M.1 aHush J.1 aKamper S.1 aMaher C.00aHow little pain and disability do patients with low back pain have to experience to feel that they have recovered?  a2010/03/17  a1495-5010 v193 a<p>
Epidemiological and clinical studies of people with low back pain (LBP) commonly measure the incidence of recovery. The pain numerical rating scale (NRS), scores from 0 to 10, and Roland Morris disability questionnaire (RMDQ), scores from 0 to 24, are two instruments often used to define recovery. On both scales higher scores indicate greater severity. There is no consensus, however, on the cutoff scores on these scales that classify people as having recovered. The aim of this study was to determine which cutoff scores most accurately classify those who had recovered from LBP. Subjects from four clinical studies were categorized as 'recovered' or 'unrecovered' according to their self-rating on a global perceived effect scale. Odd ratios were calculated for scores of 0, 1, 2, 3 and 4 on the NRS and RMDQ to predict perceived recovery. Scores of 0 on the NRS and
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