Validation of the Brazilian-Portuguese version of the Gesture Behavior Test for patients with non-specific chronic low back pain

Validation of the Brazilian-Portuguese version of the Gesture Behavior Test for patients with non-specific chronic low back pain

Autor Furtado, Ricardo Autor UNIFESP Google Scholar
Jones, Anamaria Autor UNIFESP Google Scholar
Furtado, Rita Nv Autor UNIFESP Google Scholar
Jennings, Fábio Autor UNIFESP Google Scholar
Natour, Jamil Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo OBJECTIVE: To develop a Brazilian version of the gesture behavior test (GBT) for patients with chronic low back pain. METHODS: Translation of GBT into Portuguese was performed by a rheumatologist fluent in the language of origin (French) and skilled in the validation of questionnaires. This translated version was back-translated into French by a native-speaking teacher of the language. The two translators then created a final consensual version in Portuguese. Cultural adaptation was carried out by two rheumatologists, one educated patient and the native-speaking French teacher. Thirty patients with chronic low back pain and fifteen healthcare professionals involved in the education of patients with low back pain through back schools (gold-standard) were evaluated. Reproducibility was initially tested by two observers (inter-observer); the procedures were also videotaped for later evaluation by one of the observers (intra-observer). For construct validation, we compared patients' scores against the scores of the healthcare professionals. RESULTS: Modifications were made to the GBT for cultural reasons. The Spearman's correlation coefficient and the intra-class coefficient, which was employed to measure reproducibility, ranged between 0.87 and 0.99 and 0.94 to 0.99, respectively (p < 0.01). With regard to validation, the Mann-Whitney test revealed a significant difference (p < 0.01) between the averages for healthcare professionals (26.60; SD 2.79) and patients (16.30; SD 6.39). There was a positive correlation between the GBT score and the score on the Roland Morris Disability Questionnaire (r= 0.47). CONCLUSIONS: The Brazilian version of the GBT proved to be a reproducible and valid instrument. In addition, according to the questionnaire results, more disabled patients exhibited more protective gesture behavior related to low-back.
Assunto Low back pain
Patient education
Back school
Validation studies
Idioma Inglês
Data 2009-02-01
Publicado em Clinics. Faculdade de Medicina / USP, v. 64, n. 2, p. 83-90, 2009.
ISSN 1807-5932 (Sherpa/Romeo, fator de impacto)
Editor Faculdade de Medicina / USP
Extensão 83-90
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000263376800003
SciELO S1807-59322009000200004 (estatísticas na SciELO)

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