Department of Physical Therapy, University of Pernambuco, Petrolina, Brazil.
Master's and Doctoral Programs in Rehabilitation and Functional Performance, University of Pernabuco, Petrolina, Brazil.
Adv Rheumatol. 2022 Nov 4;62(1):40. doi: 10.1186/s42358-022-00274-z.
Despite the criteria already established for the classification of knee osteoarthritis (OA), a radiographic and/or clinical knee OA diagnosis usually occurs in cases of fully manifest or more advanced disease, which can make health promotion, prevention, and functional rehabilitation in more advanced stages of the disease less effective. In addition, radiographic knee OA can generate more financial costs for health services. Therefore, developing and validating screening instruments to assess the probability of development and progression of knee OA would be of great value for both clinical practice and science.
To cross-culturally adapt and investigate the measurement properties of the Knee OA Pre-screening Questionnaire Brazilian version.
A total of 250 individuals of both sexes aged between 35 and 92 years [(mean (standard deviation): 63 (11) years old; 74.1 (15.1) kg; 1.59 (0.09) m; 29.38 (5.44) kg/m] participated in this study. The cross-cultural adaptation and analyses of the measurement properties of the KOPS Brazilian version included: (1) assessment of conceptual and item equivalence; (2) assessment of semantic equivalence; (3) assessment of operational equivalence; and (4) assessment of measurement equivalence, reliability, and validity.
Cronbach's alpha for the internal consistency among the six components of the KOPS Brazilian version was 0.71. The test-retest 72 h apart for each component resulted in a coefficient correlation intraclass ranging from 0.74 to 1.00. The probability of an individual randomly chosen from the population having KL ≥ 1 and KOPS Brazilian version ≥ 21 points was 0.74 (area under the curve of the Receiver Operating Characteristic - AUC of ROC); furthermore, the AUC for KL ≥ 2 and the KOPS Brazilian version ≥ 23 points was 0.77.
The KOPS Brazilian version is a reliable and valid instrument for early screening of knee OA in individuals aged 35 years and over in the Brazilian context.
尽管已经为膝关节骨关节炎（OA）的分类制定了标准，但通常在完全表现或更晚期疾病的情况下才会做出放射学和/或临床膝关节 OA 诊断，这使得在疾病的更晚期进行健康促进、预防和功能康复的效果较差。此外，放射学膝关节 OA 会给卫生服务带来更多的经济成本。因此，开发和验证用于评估膝关节 OA 发生和进展可能性的筛查工具对于临床实践和科学都具有重要价值。
跨文化调适并研究巴西版膝关节 OA 预筛查问卷的测量特性。
共有 250 名年龄在 35 至 92 岁之间的男女参与者（平均（标准差）：63（11）岁；74.1（15.1）kg；1.59（0.09）m；29.38（5.44）kg/m²）参与了这项研究。巴西版 KOPS 的跨文化调适和测量特性分析包括：（1）评估概念和项目等效性；（2）评估语义等效性；（3）评估操作等效性；和（4）评估测量等效性、信度和效度。
KOPS 巴西版六个组成部分的内部一致性 Cronbach's alpha 为 0.71。每个组成部分在 72 小时内的重测信度的组内相关系数范围为 0.74 至 1.00。从人群中随机选择的个体 KL≥1 和 KOPS 巴西版≥21 分的概率为 0.74（接收器工作特征曲线下的面积 - ROC 的 AUC）；此外，KL≥2 和 KOPS 巴西版≥23 分的 AUC 为 0.77。
KOPS 巴西版是一种可靠且有效的工具，可用于在巴西背景下对 35 岁及以上人群进行膝关节 OA 的早期筛查。
