Department of Neurobiology, Caring Sciences, and Society, Division of Physiotherapy, Karolinska Institutet, 144 83, Huddinge, Sweden.
Department of Teaching, Research and Development, Spine Center Division, Schulthess Klinik, Lengghalde 2, 8008, Zurich, Switzerland.
Eur Spine J. 2020 Jun;29(6):1445-1452. doi: 10.1007/s00586-019-06271-z. Epub 2020 Jan 4.
There is a wide selection of instruments and questionnaires available, but many are time consuming in their administration, for patients, practitioners and researchers alike. The Core Outcome Measures Index (COMI) is a short, self-administrated, multidimensional instrument translated into several languages that covers five domains recommended in the assessment of outcome in patients with low-back pain. The purpose of this study was to cross-culturally adapt the COMI from English to Swedish and to test the face and construct validity and reproducibility of its results in patients with low-back pain.
Participants (n = 102) were included from primary and secondary care. The participants reported moderate pain and disability levels. All participants filled in the COMI, the Oswestry Disability Index and the EQ5D at baseline. Forty-nine filled in the COMI again after 7 days for the reproducibility part of the study.
The instrument was successfully forward and back-translated. In the validation process, there were low floor/ceiling effects, with the exception of the symptom-specific well-being (floor) and work disability (ceiling) items. The specific COMI domains and whole score correlated significantly with the chosen reference scale scores to the hypothesised extent (Rho 0.30-0.60 and > 0.60 respectively). COMI reached ICC 0.63 (95% CI 0.42-0.77) in the reproducibility test and the separate items, ICC 0.41-0.78.
The Swedish COMI shows acceptable psychometric properties and is thus suitable to use as a short instrument for measuring important domains in patients with low-back pain. A future study should investigate the instrument's sensitivity to measure change after treatment. These slides can be retrieved under Electronic Supplementary Material.
有各种各样的工具和问卷可供选择，但许多工具在患者、医生和研究人员的使用过程中都很耗时。核心结局测量指标（COMI）是一种简短的、自我管理的、多维的工具，已被翻译成多种语言，涵盖了评估腰痛患者结局时推荐的五个领域。本研究的目的是将 COMI 从英文翻译成瑞典文，并在腰痛患者中测试其结果的表面效度、结构效度和可重复性。
在初级和二级保健中纳入参与者（n=102）。参与者报告有中度疼痛和残疾程度。所有参与者在基线时填写 COMI、Oswestry 残疾指数和 EQ5D。在研究的可重复性部分，49 名参与者在 7 天后再次填写 COMI。
该工具成功地进行了正向和反向翻译。在验证过程中，除了症状特异性的幸福感（下限）和工作残疾（上限）项目外，都没有出现地板/天花板效应。COMI 的特定领域和总分与所选参考量表的得分呈显著相关（Rho 0.30-0.60 和>0.60）。在可重复性测试中，COMI 的 ICC 为 0.63（95%CI 0.42-0.77），而单独的项目，ICC 为 0.41-0.78。
瑞典语版 COMI 具有可接受的心理测量学特性，因此适合作为一种测量腰痛患者重要领域的简短工具。未来的研究应该调查该工具在治疗后测量变化的敏感性。这些幻灯片可在电子补充材料中检索。
