Portuguese version of the standardized Nordic musculoskeletal questionnaire: cross cultural and reliability
- Cristina Carvalho MesquitaAffiliated withHealth School of the Polytechnic Institute of Porto Email author
- , José Carlos RibeiroAffiliated withResearch Centre in Physical Activity, Health and Leisure, Sports Faculty, University of Porto
- , Pedro MoreiraAffiliated withNutrition’s Faculty, University of Porto
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The self-administered questionnaires are fundamental for clinical assessment and research. The accessibility and constant use of recognized questionnaires in different languages facilitates the compilation of reliable data in international multicentre studies.
The purpose of this study was to carry out a cross-cultural adaptation of the standardized Nordic musculoskeletal questionnaire for Portuguese workers and to investigate the psychometric properties of the Portuguese version.
Sixty warehouse workers completed the questionnaire booklet containing the newly translated version of the standardized Nordic musculoskeletal questionnaire (NMQ) and the Oswestry disability index (ODI). After a week, to test reliability, all the individuals completed the standardized Nordic musculoskeletal questionnaire for a second time. The study is in accordance with the ERGHO guidelines for cross cultural adaptation.
The Kendall’s tau-b correlation coefficient demonstrated existence of association to the upper back region variable “last 7 days” (0.350 to p < 0.01), low back region variable “last 7 days” (0.290 to p < 0.05), and low back region variable “limitations in daily activities” (0.479 to p < 0.01). These results showed a moderate correlation between the NMQ and ODI. Through the Kappa agreement correlation coefficient, we observe that the majority of the correlation coefficients were between 0.8 and 1, showing the existence of a strong to a very strong association, indicative of good levels for test-retest reliability. The Kuder-Richarson coefficient of reliability showed a correlation coefficient of 0.855 indicative of good internal consistency.
The Portuguese version of the standardized Nordic musculoskeletal questionnaire for Portuguese workers seems to be valid revealing good coefficients of reliability.
KeywordsCross cultural adaptation Reliability Validity Musculoskeletal symptomatology
- Portuguese version of the standardized Nordic musculoskeletal questionnaire: cross cultural and reliability
Journal of Public Health
Volume 18, Issue 5 , pp 461-466
- Cover Date
- Print ISSN
- Online ISSN
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- Cross cultural adaptation
- Musculoskeletal symptomatology
- Author Affiliations
- 1. Health School of the Polytechnic Institute of Porto, Rua Valente Perfeito 322, 4400-330, Vila Nova de Gaia, Portugal
- 2. Research Centre in Physical Activity, Health and Leisure, Sports Faculty, University of Porto, Rua Dr. Plácido Costa, 91, 4200-450, Porto, Portugal
- 3. Nutrition’s Faculty, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal