Ugarte Ll Jorge, Vargas R Felipe
Escuela de Kinesiología, Universidad Católica Silva Henríquez, Santiago, Chile.
Rev Med Chil. 2021 Sep;149(9):1302-1310. doi: 10.4067/S0034-98872021000901302.
Timed Up and Go (TUG) is used to assess the risk of falling of older people.
To evaluate the sensitivity and specificity of TUG as a predictor of falls in older adults.
TUG was measured in 148 independent community-dwelling older adults aged 75 ± 7 years (85% women). Of these, 58 reported having a fall in the previous year. Analysis of the ROC (Receiver Operating Characteristic) curve was performed to assess the sensitivity and specificity of common cut-off times used in clinical practice. The times required to perform the TUG as quickly as possible (best fitted time) and at the usual pace (common time) were registered.
Participants with a history of falls had higher TUG times than their counterparts who did not fall (10.9 ± 3.9 and 9.2 ± 2.6 s, respectively). By age groups, only in the 60-69 age group the differences between those who fell and those who did not, were statistically significant (p < 0.05). A cut-off of 9s generates the better sensitivity and specificity for the test (0.60 and 0.57, respectively). For 60-69 age group the best cut-off time is 8.2s, with an increase in sensitivity and specificity to 0.73 and 0.68, respectively.
There were differences in TUG values between participants with and without a history of falls. Determining TUG cut-off values by age groups improves the sensitivity and specificity of the test, especially in the 60-69 age range.
定时起立行走测试（TUG）用于评估老年人跌倒风险。
评估TUG作为老年人跌倒预测指标的敏感性和特异性。
对148名年龄在75±7岁的独立居住在社区的老年人（85%为女性）进行TUG测试。其中，58人报告上一年有过跌倒。通过分析ROC（受试者工作特征）曲线来评估临床实践中常用截断时间的敏感性和特异性。记录了尽可能快地完成TUG的时间（最佳拟合时间）和以平常速度完成的时间（常规时间）。
有跌倒史的参与者的TUG时间高于无跌倒史的参与者（分别为10.9±3.9秒和9.2±2.6秒）。按年龄组划分，仅在60 - 69岁年龄组中，跌倒者与未跌倒者之间的差异具有统计学意义（p<0.05）。截断值为9秒时，测试的敏感性和特异性较好（分别为0.60和0.57）。对于60 - 69岁年龄组，最佳截断时间为8.2秒，敏感性和特异性分别提高到0.73和0.68。
有跌倒史和无跌倒史的参与者之间TUG值存在差异。按年龄组确定TUG截断值可提高测试的敏感性和特异性，尤其是在60 - 69岁年龄范围内。
