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.

中文翻译：

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巴西版伯恩茅斯问卷对下背痛的心理计量学特性：有效性和可靠性。

目标

伯恩茅斯问卷是一种综合的，简短的多维工具，旨在评估腰背痛患者的健康状况。这项研究的目的是验证巴西版《伯恩茅斯问卷》在下背痛患者中的结构有效性和重测信度。

方法

这项方法学研究包括65位腰背痛患者。使用两次巴西伯恩茅斯问卷，并使用组内相关系数（ICC），标准测量误差（SEM），最小可检测变化（MDC）和内部一致性评估重测信度。使用数字疼痛评分量表（NPRS）以及以下问卷对巴西伯恩茅斯问卷的结构效度进行了评估：Roland-Morris问卷（RMDQ），Oswestry残疾指数（ODI）和医学成果研究36项短-形式健康调查（SF-36）。

结果

巴西伯恩茅斯问卷的总分显示ICC为0.82（95％CI：0.72，0.90），Cronbach's alpha为0.85，SEM为5.97，MDC为15.54，没有天花板和地板效果的迹象。巴西伯恩茅斯问卷的总分与当前（r = 0.64），最高（r = 0.49）和最低（r = 0.67）疼痛的NPRS以及RMDQ（r = 0.58），ODI的得分相关（r = 0.42）和SF-36（r = -0.58）。

结论

巴西版《伯恩茅斯问卷》的总分有效且可靠，可用于腰痛患者。