Department of Physical Therapy, Speech Therapy, and Occupational Therapy, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil.
Disabil Rehabil. 2023 Jul;45(15):2526-2532. doi: 10.1080/09638288.2022.2096127. Epub 2022 Jul 7.
To explore the evidence of the internal structure validity of the Roland-Morris Disability Questionnaire in older adults with low back pain.
This was a cross-sectional study of psychometric testing involving 528 older adults with low back pain. Internal structure validity was explored by exploratory factor analysis and semi-confirmatory factor analysis. Reliability was verified using Kuder-Richardson Formula 20, Cronbach's alpha, and McDonald's omega. Replicability was observed by the generalized H index.
Roland-Morris Disability Questionnaire displayed two factors that assess "functional capacity" and "mobility". Eight items were excluded for presenting cross-loading (2 and 10), inadequate loading factors and communalities (18, 24, 13, and 12), or did not relate to the latent construct (15 and 22). Semi-confirmatory factor analysis indicated that the questionnaire had a good fitness model [ = 153.698 ( = 0.00001); RMSEA = 0.037; RMSR = 0.06; WRMR = 0.04; NNFI = 0.987; GFI = 0.979; AGFI = 0.971]. Reliability was acceptable (KR-20 = 0.79; Cronbach's alpha = 0.86; McDonald's Omega = 0.85), but replicability was poor in both factors (G-H factor 1 = 0.816-0.655; G-H factor 2 = 0.889-0.775).
The most appropriate version of the Roland-Morris Disability Questionnaire to apply to older adults with low back pain has 16 items and assesses functional capacity and mobility. IMPLICATIONS FOR REHABILITATIONThe RMDQ-16 is the most appropriate version of the RMDQ to use in older adults with LBP;The RMDQ-16 is bidimensional and assesses "functional capacity" and "mobility";The poor replicability of the RMDQ-16 indicates that it will probably not be stable across studies, but it can be useful in a clinical setting.
探索罗伦兹-莫里斯残疾问卷（Roland-Morris Disability Questionnaire）在老年腰痛患者中的内部结构效度的证据。
这是一项涉及 528 名老年腰痛患者的横断面心理测量测试研究。通过探索性因素分析和半验证性因素分析来探索内部结构效度。使用 Kuder-Richardson 公式 20、Cronbach's alpha 和 McDonald's omega 验证可靠性。通过广义 H 指数观察可重复性。
罗伦兹-莫里斯残疾问卷显示出评估“功能能力”和“活动能力”的两个因素。有 8 个项目因交叉负荷（2 和 10）、不足的负荷因素和共性（18、24、13 和 12）或与潜在结构无关（15 和 22）而被排除。半验证性因素分析表明，该问卷具有良好的拟合模型[ = 153.698（ = 0.00001）；RMSEA = 0.037；RMSR = 0.06；WRMR = 0.04；NNFI = 0.987；GFI = 0.979；AGFI = 0.971]。可靠性可接受（KR-20 = 0.79；Cronbach's alpha = 0.86；McDonald's Omega = 0.85），但两个因素的可重复性均较差（G-H 因素 1 = 0.816-0.655；G-H 因素 2 = 0.889-0.775）。
适用于腰痛老年患者的罗伦兹-莫里斯残疾问卷最合适版本为 16 项，评估功能能力和活动能力。
RMDQ-16 是 LBP 老年患者使用 RMDQ 的最合适版本；RMDQ-16 是二维的，评估“功能能力”和“活动能力”；RMDQ-16 较差的可重复性表明，它在不同研究中可能不会稳定，但在临床环境中可能有用。
