Kossi Oyéné, Silva Soraia M, Lena Francesco, Agbetou Mendinatou, Adoukonou Thierry, Feys Peter, Nindorera Félix
National School of Public Health and Epidemiology, University of Parakou, Parakou, Benin.
Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil.
S Afr J Physiother. 2025 Jan 28;81(1):1999. doi: 10.4102/sajp.v81i1.1999. eCollection 2025.
The Participation Measurement Scale (PM-Scale) is an International Classification of Functioning, Disability and Health-based and Rasch-built scale developed specifically to assess participation in people with stroke.
Our study aimed to estimate the minimal clinically important difference (MCID) for the PM-Scale.
We performed a secondary analysis of data from the 'Circuit walking, balance, cycling and strength training' trial. Participants underwent mixed and collective physical activities or sociocultural activities for 12 weeks, and participation data were collected before and after the interventions. The activity limitations (ACTIVLIM)-Stroke scale was used as the anchor of importance. The MCID for the PM-Scale was estimated using receiver operating characteristic (ROC) curves and the Youden index.
Data were collected from 46 people with chronic stroke, of which 22% were female, with median (Percentile 25, Percentile 75) age of 54 (44; 60) years, and time since stroke is 24 (11; 37) months. For all participants, the PM-Scale measures range from -2.98 logits to 5.02 logits. The area under the curve (AUC) for the receiver operating characteristic (ROC)-analysis was 0.74 yielding an estimated MCID of 1.98 logit for the PM-Scale.
Our study estimated the MCID of the PM-Scale at 1.98 logit, enabling a more precise interpretation of the outcome in the clinical and research settings.
An improvement of at least 1.98 logit on the PM-Scale is required to induce a clinical change in the independence in activities of daily living in people with chronic stroke.
参与度测量量表（PM量表）是一种基于《国际功能、残疾和健康分类》并通过拉施模型构建的量表，专门用于评估中风患者的参与度。
我们的研究旨在估计PM量表的最小临床重要差异（MCID）。
我们对“循环步行、平衡、骑行和力量训练”试验的数据进行了二次分析。参与者进行了为期12周的混合性和集体性体育活动或社会文化活动，并在干预前后收集了参与度数据。活动受限（ACTIVLIM）-中风量表被用作重要性的锚定指标。使用受试者工作特征（ROC）曲线和尤登指数估计PM量表的MCID。
收集了46例慢性中风患者的数据，其中22%为女性，年龄中位数（第25百分位数，第75百分位数）为54（44；60）岁，中风后时间为24（11；37）个月。对于所有参与者，PM量表的测量范围为-2.98对数单位至5.02对数单位。受试者工作特征（ROC）分析的曲线下面积（AUC）为0.74，PM量表的估计MCID为1.98对数单位。
我们的研究估计PM量表的MCID为1.98对数单位，有助于在临床和研究环境中更精确地解释结果。
慢性中风患者在日常生活活动中的独立性要发生临床变化，PM量表至少需要提高1.98对数单位。
