The minimal clinically important difference of the motricity index score

The Motricity Index (MI) can predict motor function after rehabilitation, but its minimal clinically important difference (MCID) has not been established. The primary study aim was to estimate the MCID value of the MI arm score. Between 2017 and 2018, 173 participants hospitalized with confirmed ischemic stroke were recruited into an observational rehabilitation study. Participants with motor weakness as measured by the Fugl-Meyer upper-extremity (FM-UE) and MI with complete baseline and follow-up assessments at 3 months were included in this analysis. The longitudinal recovery of the MI arm score was anchored to having a poor outcome based on the FM-UE recovery (

运动能力指数（MI）能够预测康复后的运动功能，但其最小临床重要差异（MCID）尚未确立。本研究的主要目标是估算MI臂评分的最小临床重要差异值。在2017年至2018年间，共有173名经确诊为缺血性卒中的住院患者被招募进入一项观察性康复研究。在本分析中，纳入了那些通过Fugl-Meyer上肢（FM-UE）测试评估的运动无力患者，以及那些在基线和3个月随访时均进行完整评估的MI患者。MI臂评分的纵向恢复情况以基于FM-UE恢复情况的较差结果为基准。