A comparison of a modified Oswestry Low Back Pain Disability Questionnaire and the Quebec Back Pain Disability Scale
A comparison of a modified Oswestry Low Back Pain Disability Questionnaire and the Quebec Back Pain Disability Scale
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DOI：
10.1093/ptj/81.2.776
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发表时间：
2001-02-01
期刊：
影响因子：
3.2
通讯作者：
Irrgang, JJ
中科院分区：
文献类型：
--
作者：
Fritz, JM;Irrgang, JJ
背景和目的。残疾量表的质量应决定何时使用。本研究的目的是检查作为患者状态有意义变化的反映的总体变化评级的有效性，并比较改良的奥斯韦斯特里腰痛残疾问卷（OSW）和魁北克背痛残疾量表（CLUE）的测量特性。科目67名急性工作相关腰痛患者接受了物理治疗。方法.最初和4周的物理治疗后，管理2个量表。身体损害指数，由于腰痛的身体损害的措施，最初和2周和4周后进行测量。4周后，每位受试者完成了变化调查工具的总体评级。结果基于使用双因素方差分析对损伤指数进行重复测量的总体评级，定义为改善或稳定的患者之间存在相互作用。与QUE相比，改进的OSW具有更高的重测信度和反应度。最小临床重要差异定义为最能区分改善患者和保持稳定患者的变化量，改良OSW约为6分，QUE约为15分。结论和讨论。总体评分变化的结构效度得到了以下方面的支持：在总体评分定义为稳定的患者中，身体损害指数在整个研究期间的稳定性，以及在总体评分定义为改善的患者中，身体损害在整个研究期间的降低。与QUE相比，改进的OSW表现出优越的上级测量特性。
Background and Purpose. The quality of a disability scale should dictate when it is used. The purposes of this study were to examine the validity of a global rating of change as a reflection of meaningful change in patient status and to compare the measurement properties of a modified Oswestry Low Back Pain Disability Questionnaire (OSW) and the Quebec Back Pain Disability Scale (CLUE). Subjects. Sixty-seven patients with acute, work-related low back pain referred for physical therapy participated in the study. Methods. The 2 scales were administered initially and after 4 weeks of physical therapy. The Physical Impairment Index, a measure of physical impairment due to low back pain, was measured initially and after 2 and 4 weeks. A global rating of change survey instrument was completed by each subject after 4 weeks. Results. An interaction existed between patients defined as improved or stable based on the global rating using a 2-way analysis of variance for repeated measures on the impairment index. The modified OSW showed higher levels of test-retest reliability and responsiveness compared with the QUE. The minimum clinically important difference, defined as the amount of change that best distinguishes between patients who have improved and those remaining stable, was approximately 6 points for the modified OSW and approximately 15 points for the QUE. Conclusion and Discussion. The construct validity of the global rating of change was supported by the stability of the Physical Impairment Index across the study period in patients defined as stable by the global rating and by the decrease in physical impairment across the study period in patients defined as improved by the global rating. The modified OSW demonstrated superior measurement properties compared with the QUE.