Küçükdeveci A A, Tennant A, Elhan A H, Niyazoglu H
Department of Physical Medicine & Rehabilitation, Faculty of Medicine, University of Ankara, Turkey.
Spine (Phila Pa 1976). 2001 Dec 15;26(24):2738-43. doi: 10.1097/00007632-200112150-00024.
A reliability and validity study of a previously translated version of the Roland-Morris Disability Questionnaire (RMDQ).
To validate the Turkish version of the RMDQ for use in low back pain.
Clinical and epidemiologic research related to low back pain in the Turkish population would be facilitated by the availability of well-established outcome measures.
A total of 81 outpatients with low back pain, 64 of whom were followed up on a second occasion, were assessed by the RMDQ. Reliability was assessed using internal consistency and the intraclass correlation coefficient. Internal construct validity was assessed by Rasch analysis; external construct validity was assessed by association with pain and spinal movement. Responsiveness was tested by both the nonparametric and parametric effect sizes.
Internal consistency of the RMDQ is found to be adequate (>0.85) at both times, with high intraclass correlation coefficient also at both time points. Internal construct validity of the scale is good, indicating a single underlying construct. Expected associations with pain confirm external construct validity. There is little evidence of differential item functioning. The scale is at the ordinal level. Responsiveness of the RMDQ is good and greater than observed change in spinal movement.
The RMDQ is a robust unidimensional ordinal measure, largely free of differential item functioning, which works well in the Turkish population. Nonparametric effect sizes of ordinal scales are found to overestimate or underestimate the true effect size depending on the nature of the scale and the distribution of patients at baseline.
对罗兰-莫里斯残疾问卷（RMDQ）先前翻译版本的可靠性和有效性研究。
验证RMDQ土耳其语版本用于腰痛的有效性。
完善的结局指标将有助于土耳其人群中与腰痛相关的临床和流行病学研究。
共有81例腰痛门诊患者接受了RMDQ评估，其中64例进行了二次随访。通过内部一致性和组内相关系数评估可靠性。通过拉施分析评估内部结构效度；通过与疼痛和脊柱活动的相关性评估外部结构效度。通过非参数和参数效应量检验反应度。
RMDQ的内部一致性在两个时间点均足够（>0.85），组内相关系数在两个时间点也都很高。该量表的内部结构效度良好，表明存在单一潜在结构。与疼痛的预期关联证实了外部结构效度。几乎没有证据表明存在项目功能差异。该量表为有序水平。RMDQ的反应度良好，且大于脊柱活动观察到的变化。
RMDQ是一种强大的单维有序测量工具，基本不存在项目功能差异，在土耳其人群中效果良好。发现有序量表的非参数效应量会根据量表性质和基线患者分布高估或低估真实效应量。
