Cross-Cultural Adaptation and Reliability of the Back Pain and Body Posture Evaluation Instrument (BackPEI) to the Spanish Adolescent Population
2021
Vicente Miñana-Signes | Manuel Monfort-Pañego | Joan Morant | Matias Noll
The prevalence of back pain (BP) among children and adolescents has increased over recent years. Some authors advocate promoting back-health education in the school setting. It is therefore important to adopt a uniform suite of assessment instruments to measure the various constructs. The present study aimed to perform a cultural adaptation of a validated measurement instrument (BackPEI), beginning with a translation and cultural adaptation phase, followed by a second phase to test reliability using a test-retest design. The translation and cross-cultural adaptation were performed based on the guidelines. Reliability was tested by applying the questionnaire to 224 secondary school students, at two different times with a 7-day interval between the tests. In general, the Spanish version presented adequate agreement for questions 1&ndash:20, with only question 9 achieving a low Kappa range of 0.312 (&minus:0.152&ndash:0.189). The question about pain intensity did not show differences between the test means (4.72 ±: 2.33) and re-test (4.58 ±: 2.37) (p = 0.333), and the responses for these two tests obtained a high correlation (ICC = 0.951 (0.928&ndash:0.966): p = 0.0001). Psychometric testing indicated that the Spanish version of the BackPEI is well-adapted and reliable, based on the test&ndash:retest design, providing similar results to the original Brazilian version.
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