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BMC Neurol. 2011 Oct 18;11:127. doi: 10.1186/1471-2377-11-127.

Validation of the spanish version of the Multiple Sclerosis International Quality of Life (Musiqol) questionnaire.

Author information

  • 1Institute of Clinical Neurosciences, Service of Neurology, Hospital Regional Universitario Carlos Haya, Avda, Carlos Haya s/n, 29010 Málaga, Spain. med001832@saludalia.com

Abstract

BACKGROUND:

The Multiple Sclerosis International Quality Of Life (MusiQoL) questionnaire, a 31-item, multidimensional, self-administrated questionnaire that is available in 14 languages including Spanish, has been validated using a large international sample. We investigated the validity and reliability of the Spanish version of MusiQoL in Spain.

METHODS:

Consecutive patients with different types and severities of multiple sclerosis (MS) were recruited from 22 centres across Spain. All patients completed the MusiQoL questionnaire, the 36-Item Short Form (SF-36) health survey, and a symptoms checklist at baseline and 21 days later. External validity, internal consistency, reliability and reproducibility were tested.

RESULTS:

A total of 224 Spanish patients were evaluated. Dimensions of MusiQoL generally demonstrated a high internal consistency (Cronbach's alpha: 0.70-0.92 for all but two MusiQoL domain scores). External validity testing revealed that the MusiQoL index score correlated significantly with all SF-36 dimension scores (Pearson's correlation: 0.46-0.76), reproducibility was satisfactory (intraclass correlation coefficient: 0.60-0.91), acceptability was high, and the time taken to complete the 31-item questionnaire was reasonable (mean [standard deviation]: 9.8 [11.8] minutes).

CONCLUSIONS:

The Spanish version of the MusiQoL questionnaire appears to be a valid and reliable instrument for measuring quality of life in patients with MS in Spain and constitutes a useful instrument to measure health-related quality of life in the clinical setting.

PMID:
22013975
[PubMed - indexed for MEDLINE]
PMCID:
PMC3206836
Free PMC Article
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