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01-04-2014 | Original Article

Reliability, validity and responsiveness of the cross-culturally adapted Italian version of the core outcome measures index (COMI) for the neck

Authors: Marco Monticone, Simona Ferrante, Serena Maggioni, Gisel Grenat, Giovanni A. Checchia, Marco Testa, Marco G. Teli, Anne F. Mannion

Published in: European Spine Journal | Issue 4/2014

Abstract

Purpose

Evaluation of the psychometric properties of a cross-culturally adapted questionnaire, the Core Outcome Measurement Index for neck pain (COMI-neck).

Methods

The COMI-neck was cross-culturally adapted for the Italian language using established procedures. The following psychometric properties of the instrument were then assessed in patients with chronic neck pain undergoing rehabilitation: test–retest reliability (intraclass correlation coefficient, ICC); construct validity by comparing COMI-neck with the Neck Pain and Disability Scale, a numerical pain rating scale, and the EuroQol-Five Dimension (Pearson’s correlations); and responsiveness by means of Standardized Response Mean (SRM), unpaired t tests, and Receiver Operating Characteristics (ROC) curves.

Results

The questionnaire was completed by 103 subjects. The COMI-neck summary score displayed no relevant floor or ceiling effects. Test–retest reliability was excellent (ICC = 0.87). With one exception (symptom-specific well-being), the individual COMI items and the COMI summary score correlated to the expected extent with the scores of the reference questionnaires (r = 0.40–0.80). The mean change scores for the Italian COMI-neck differed significantly between patients with a good global outcome and those with a poor outcome (p = 0.002); SRM for the good outcome group was 1.23, and for the poor outcome group 0.40. ROC analysis revealed an area under the curve of 0.73 (95 % CI: 0.62–0.85).

Conclusions

This study provides evidence that the Italian version of the COMI-neck is a valid and responsive questionnaire in the population of patients examined. Its use is recommended for clinical and research purposes.

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Title: Reliability, validity and responsiveness of the cross-culturally adapted Italian version of the core outcome measures index (COMI) for the neck
Authors: Marco Monticone
Simona Ferrante
Serena Maggioni
Gisel Grenat
Giovanni A. Checchia
Marco Testa
Marco G. Teli
Anne F. Mannion
Publication date: 01-04-2014
Publisher: Springer Berlin Heidelberg
Published in: European Spine Journal / Issue 4/2014
Print ISSN: 0940-6719
Electronic ISSN: 1432-0932
DOI: https://doi.org/10.1007/s00586-013-3092-y

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Reliability, validity and responsiveness of the cross-culturally adapted Italian version of the core outcome measures index (COMI) for the neck

Abstract

Purpose

Methods

Results

Conclusions

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Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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