Department of Orthopedics and Traumatology, Universidade Federal de São Paulo, Brazil.
Clin Exp Rheumatol. 2009 Sep-Oct;27(5):758-64.
To investigate the responsiveness of the Brazilian version of the Western Ontario Rotator Cuff Index (WORC) and compare it with the Disabilities of Arm, Shoulder and Hand questionnaire (DASH), the University of California Los Angeles Shoulder Rating Scale (UCLA), and the Short-Form 36 questionnaire (SF-36) in patients with rotator cuff disorders.
The four questionnaires were administered to 30 patients at baseline and 3 months after treatment (physiotherapy or surgery). The patients were divided into two groups: those who improved after treatment (n=20) and those who did not (n=10) based on an anchor-based strategy to distinguish between the two groups and assess responsiveness. The t-test, the t-value of the paired t-test, the effect size (ES), and the standardized response mean (SRM) were calculated.
All four questionnaires registered statistically significant changes (p<0.05) in the "improved" group between baseline and 3 months after treatment, and no changes in patients who did not improve. All four instruments showed higher ES and SRM values for the patients who improved than those who did not. WORC registered moderate to high ES and SRM values for the "improved" group, as did the UCLA and DASH. The ES and SRM values measured by the SF-36 ranged from small to large, the physical subscales being more responsive than the other subscales.
The Brazilian version of the WORC (like UCLA, DASH and SF-36 physical subscales) proved responsive to change and suitable for use in the short-term follow-up of patients after rotator cuff interventions.
研究巴西版 Western Ontario Rotator Cuff Index（WORC）的反应能力，并将其与 Disabilities of Arm, Shoulder and Hand Questionnaire（DASH）、University of California Los Angeles Shoulder Rating Scale（UCLA）和 Short-Form 36 Questionnaire（SF-36）进行比较，以评估其在肩袖疾病患者中的应用。
在基线和治疗后 3 个月（物理治疗或手术）时，对 30 名肩袖疾病患者使用这四个问卷进行评估。根据锚定策略将患者分为两组：治疗后改善（n=20）和未改善（n=10）。使用 t 检验、配对 t 检验的 t 值、效应量（ES）和标准化反应均值（SRM）来评估问卷的反应能力。
在治疗后改善的患者中，四个问卷在基线和治疗后 3 个月之间均显示出统计学上的显著变化（p<0.05），而在未改善的患者中则没有变化。在治疗后改善的患者中，所有四个仪器的 ES 和 SRM 值均高于未改善的患者。WORC 在“改善”组中显示出中度到高度的 ES 和 SRM 值，UCLA 和 DASH 也是如此。SF-36 的 ES 和 SRM 值范围从小到大，身体子量表比其他子量表更敏感。
巴西版 WORC（与 UCLA、DASH 和 SF-36 身体子量表一样）对变化具有反应能力，适用于肩袖干预后患者的短期随访。
