Department of Physical Medicine and Rehabilitation, Chi Mei Medical Center, Tainan, Taiwan.
Department of Occupational Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan.
Eur J Phys Rehabil Med. 2019 Feb;55(1):29-34. doi: 10.23736/S1973-9087.18.05210-3. Epub 2018 Jun 14.
The responsiveness and predictive validity of the Tablet-based Symbol Digit Modalities Test (T-SDMT) are unknown, which limits the utility of the T-SDMT in both clinical and research settings.
The purpose of this study was to examine the responsiveness and predictive validity of the T-SDMT in inpatients with stroke.
A follow-up, repeated-assessments design.
One rehabilitation unit at a local medical center.
A total of 50 inpatients receiving rehabilitation completed T-SDMT assessments at admission to and discharge from a rehabilitation ward.
The median follow-up period was 14 days. The Barthel index (BI) was assessed at discharge and was used as the criterion of the predictive validity.
The mean changes in the T-SDMT scores between admission and discharge were statistically significant (paired t-test = 3.46, P=0.001). The T-SDMT scores showed a nearly moderate standardized response mean (0.49). A moderate association (Pearson's r =0.47) was found between the scores of the T-SDMT at admission and those of the BI at discharge, indicating good predictive validity of the T-SDMT.
Our results support the responsiveness and predictive validity of the T-SDMT in patients with stroke receiving rehabilitation in hospitals.
This study provides empirical evidence supporting the use of the T-SDMT as an outcome measure for assessing processing speed in inpatients with stroke. The scores of the T-SDMT could be used to predict basic activities of daily living function in inpatients with stroke.
基于平板电脑的符号数字模态测试（T-SDMT）的反应性和预测效度尚不清楚，这限制了 T-SDMT 在临床和研究环境中的应用。
本研究旨在检验 T-SDMT 在住院脑卒中患者中的反应性和预测效度。
随访，重复评估设计。
当地医疗中心的一个康复病房。
共有 50 名接受康复治疗的住院患者在入住和出院时完成了 T-SDMT 评估。
中位随访时间为 14 天。采用 Barthel 指数（BI）在出院时进行评估，并作为预测效度的标准。
T-SDMT 评分在入院和出院之间的变化具有统计学意义（配对 t 检验=3.46，P=0.001）。T-SDMT 评分的标准反应均数接近中等（0.49）。入院时 T-SDMT 评分与出院时 BI 评分之间存在中度相关性（Pearson r=0.47），表明 T-SDMT 具有良好的预测效度。
我们的研究结果支持 T-SDMT 在接受医院康复治疗的脑卒中患者中的反应性和预测效度。
本研究为使用 T-SDMT 作为评估脑卒中住院患者处理速度的结果测量提供了经验证据。T-SDMT 评分可用于预测脑卒中住院患者的基本日常生活活动功能。
