Measures of lower body function and risk of mortality over 7 years of follow-up
Measures of lower body function and risk of mortality over 7 years of follow-up
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DOI：
10.1093/aje/kwm121
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发表时间：
2007-09-01
影响因子：
5
通讯作者：
Ottenbacher, Kenneth J.
中科院分区：
文献类型：
--
作者：
Ostir, Glenn V.;Kuo, Yong-Fang;Ottenbacher, Kenneth J.
该研究检验了步行速度测试是否可以提供与下半身功能的汇总测量类似的死亡风险预测信息。数据来自老年人流行病学研究西班牙裔人口数据库，包括 65 岁或以上的墨西哥裔美国人 (19932000)。主要衡量指标包括短期身体机能电池、步行速度测试和死亡率。样本平均年龄为72.0岁，其中58.3%为女性。在未调整和调整的基线模型中，观察到的死亡风险风险比对于完全短身体表现电池和单独的步行速度是相似的。与时间相关的步行速度测量显示，步行速度较慢的人的死亡风险增加两倍以上。结果还显示，在调整或不调整基线协变量的情况下，连续步行速度与死亡率之间存在线性相关性。这项研究提供的证据表明，仅步行速度就可以提供与更全面的身体表现汇总测量类似的死亡风险信息。由于步行速度是一项快速且易于实施的测试，因此研究结果对临床使用具有影响，特别是在可能存在文化和语言障碍的服务不足的少数群体中。
The study examined whether a test of walking speed provides similar predictive information on mortality risk as does a summary measure of lower body function. Data were from the Hispanic Established Population for the Epiderniologic Study of the Elderly database and included Mexican Americans aged 65 years or more (19932000). Primary measures included a short physical performance battery, a test of walking speed, and mortality. The average age of the sample was 72.0 years, and 58.3 percent were women. The observed hazard ratio of mortality risk was similar for the full short physical performance battery and walking speed alone, in both unadjusted and adjusted baseline models. A time-dependent walking speed measure showed a more than twofold increased risk of mortality for individuals categorized with slower walking speed. The results also showed a linear association between continuous walking speed and mortality with and without adjustment for baseline covariates. This study provides evidence that walking speed alone can provide similar information on mortality risk as does a more comprehensive summary measure of physical performance. Because walking speed is a quick and easy-to administer test, findings have implications for clinical use, especially among underserved minority groups where cultural and language barriers may exist.