Osteloa etal. (2004) studied the properties of measurement of questionnaire basing on population samples on which there will be usage of the measurements. The study’s purpose is to establish is to establish an evidence which is based on the recommendation of the use of questionnaires regarding functional use in the patients after a lumbar disc surgery by the direct comparison of responsiveness and reproducibility. There was assessment of the properties of measurement of 6 status questionnaires of functional nature .In this study, (1) RDQ-24(Roland-Morris Disability Questionnaire), (2.) MRDQ(Modified Roland-Morris Disability Questionnaire), (3.) RM-18 or short Roland-Morris Disability (4.) Physical functioning Scale , (5.)SF-36 Role Limitations and main complaint (MC) subjects who still suffered from complaints for 6 weeks after the lumbar disc surgery. The questionnaires were completed before and 3 months of treatment. Suggestions were made for the usage of RDQ-24 in popele post-surgery.It was found that the optimal cut-off point for the RDQ-24 minimizing the classification error was found to be 3.5 with 88.2% as specificity.
In the studies by Osteloa et al. (2004) ,regarding measurement properties of six types of questionnaires which are based on population samples, the sensitivity for RDQ-24 was found to be 94.6%.
Reference
Osteloa,R.W.J.G., Veta,H.C.W., Knola,D.L. & van den Brandtb,P.A.(2004).24-item Roland-Morris Disability Questionnaire was preferred out of six functional status questionnaires for post-lumbar disc surgery.Journal of Clinical Epidemiology,Elsevier, vol.57,pp.268–276.
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