Letícia Bojikian Calixtre1, Carlos Luques Fonseca2, Bruno Leonardo da Silva Gruninger3, Danilo Harudy Kamonseki4. 1. Physical Therapy Department, Universidade Federal de São Carlos (UFSCar), São Carlos, SP, Brazil. Electronic address: lecalixtre@gmail.com. 2. Faculdade Anhanguera, Sorocaba, SP, Brazil. 3. Faculdade Sudoeste Paulista, Itapetininga, SP, Brazil. 4. Physical Therapy Department, Universidade Federal de São Carlos (UFSCar), São Carlos, SP, Brazil; Universidade Paulista, Sorocaba, SP, Brazil.
Abstract
OBJECTIVES: The Bournemouth Questionnaire is a comprehensive and short form multidimensional instrument developed to evaluate the health status of individuals with low back pain. The objective of this study was to verify the construct validity and the test-retest reliability of the Brazilian version of Bournemouth Questionnaire in individuals with low back pain. METHODS: This is a methodological study that included 65 patients with low back pain. The Brazilian Bournemouth Questionnaire was applied twice, and the test-retest reliability was assessed using intraclass correlation coefficient (ICC), standard error of measurement (SEM), minimum detectable change (MDC), and internal consistency. The construct validity of the Brazilian Bournemouth Questionnaire was assessed using the numeric pain rating scale (NPRS) and also with the following questionnaires: Roland-Morris Questionnaire (RMDQ), Oswestry Disability Index (ODI), and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). RESULTS: The total score of the Brazilian Bournemouth Questionnaire showed ICC of 0.82 (95% CI: 0.72, 0.90), Cronbach´s alpha of 0.85, SEM of 5.97, and MDC of 15.54, without evidence of ceiling and floor effects. The total score of the Brazilian Bournemouth Questionnaire was correlated to the NPRS for current (r = 0.64), highest (r = 0.49), and lowest (r = 0.67) pain as well as scores on the RMDQ (r = 0.58), ODI (r = 0.42), and SF-36 (r = -0.58). CONCLUSION: The total score of the Brazilian version of the Bournemouth Questionnaire is valid and reliable to be used with patients with low back pain.
OBJECTIVES: The Bournemouth Questionnaire is a comprehensive and short form multidimensional instrument developed to evaluate the health status of individuals with low back pain. The objective of this study was to verify the construct validity and the test-retest reliability of the Brazilian version of Bournemouth Questionnaire in individuals with low back pain. METHODS: This is a methodological study that included 65 patients with low back pain. The Brazilian Bournemouth Questionnaire was applied twice, and the test-retest reliability was assessed using intraclass correlation coefficient (ICC), standard error of measurement (SEM), minimum detectable change (MDC), and internal consistency. The construct validity of the Brazilian Bournemouth Questionnaire was assessed using the numeric pain rating scale (NPRS) and also with the following questionnaires: Roland-Morris Questionnaire (RMDQ), Oswestry Disability Index (ODI), and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). RESULTS: The total score of the Brazilian Bournemouth Questionnaire showed ICC of 0.82 (95% CI: 0.72, 0.90), Cronbach´s alpha of 0.85, SEM of 5.97, and MDC of 15.54, without evidence of ceiling and floor effects. The total score of the Brazilian Bournemouth Questionnaire was correlated to the NPRS for current (r = 0.64), highest (r = 0.49), and lowest (r = 0.67) pain as well as scores on the RMDQ (r = 0.58), ODI (r = 0.42), and SF-36 (r = -0.58). CONCLUSION: The total score of the Brazilian version of the Bournemouth Questionnaire is valid and reliable to be used with patients with low back pain.
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