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Indexed/Abstracted in: BIOSIS Previews, EMBASE, Scopus, Emerging Sources Citation Index
Online ISSN 1827-1812
Palou P., Kovacs F. M., Vidal J., Gili M., Borràs P. A., Gestoso M., Ponseti X
1 Physical and Sports Education, Balearic Islands University, Palma de Majorca, Spain
2 Scientific Department, Kovacs Foundation, Palma de Majorca, Spain
3 Instituto Universitario de Investigaciones en Ciencias de la Salud (IUNICS), Balearic Islands University
Palma de Majorca, Spain
Aim. It was previously believed that back pain was infrequent among children and adolescents, but recent studies have proven otherwise. The objective of this validation is to assess the methodology of a study to determine prevalence and risk factors for back pain among schoolchildren aged 10-12 years, and the comprehensibility, validity and reliability of the questionnaire.
Methods. A stratified random sample of 11 schools in Majorca was used. In those schools, 176 participants were given a written questionnaire with 30 questions on back pain and potential risk factors. Also, muscle strength, weight and height were determined.
Results. Comprehensibility: In the pilot phase, 6 (23.1%) participants asked for clarification on one question. Throughout the study, 2 questions each were left unanswered by 2 participants (1.1%). Validity: Answers to questions on having been diagnosed for scoliosis or different leg length matched medical records. Reliability: For test-retest agreement, kappa values ranged from 0.879 to 1, and Intraclass Correlation Coefficient values ranged from 0.825 to 0.882. The questionnaire has adequate comprehensibility and excellent reliability.
Conclusion. The methodological design for the study to determine the prevalence of back pain and exposure to risk factors in Majorcan schoolchildren aged 10-12 years is adequate and feasible.