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Adv Orthop. 2012; 2012: 474685.
Published online Mar 5, 2012. doi:  10.1155/2012/474685
PMCID: PMC3303546
Usefulness of the Core Outcome Measures Index in Daily Clinical Practice for Assessing Patients with Degenerative Lumbar Disease
Carlos Lozano-Álvarez, * Daniel Pérez-Prieto, Guillem Saló, Antoni Molina, Andreu Lladó, and Manuel Ramírez
Department of Orthopaedic Surgery and Traumatology, Parc de Salut Mar, Hospitales del Mar y la Esperanza, 08003 Barcelona, Spain
*Carlos Lozano-Álvarez: 97486/at/parcdesalutmar.cat
Academic Editor: Brian R. Subach
Received October 28, 2011; Revised December 17, 2011; Accepted December 20, 2011.
Abstract
Introduction. Outcome evaluation is an important aspect of the treatment of patients with degenerative lumbar disease. We evaluated the usefulness of the Core Outcome Measures Index (COMI) in assessing people affected by degenerative lumbar disease in daily clinical practice. Methods. We evaluated 221 patients who had completed preoperatively and 2 years after surgery VAS pain, Short Form-36 (SF-36), Oswestry Disability Index (ODI) and COMI. We calculated the change of scores and its sensitivity to change. The internal consistency of the COMI items and the correlation between the COMI scores and the scores of the other measurements were assessed. Results. Statistically significant differences were observed between the mean scores of the preoperative and 2 years questionnaires for nearly all measurements. COMI showed a good internal consistency, except for the preoperative pain subscale. The sensitivity to change was high for the total COMI and its pain and well-being subscales and moderate for the rest. The COMI demonstrated strong correlation with the other measurements. Conclusions. The COMI is a useful tool for assessing the patient-based outcome in the studied population. Given its simplicity, good correlation with the SF-36 and ODI and its good sensitivity to change, it could replace more cumbersome instruments in daily clinical practice.
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