BACKGROUND Physical function limitations precede disability and are a target to prevent or delay disability in aging adults. The objective of this article was to assess the relationship between self-report and performance-based measures of physical function with disability. METHODS Baseline data (2012-2015) from the Canadian Longitudinal Study on Aging (n = 51,338) was used. Disability was defined as having a limitation for at least one of 14 activities of daily living. Physical function was measured using 14 questions across three domains (upper body, lower body, and dexterity) and five performance-based tests (gait speed, timed up and go, single leg stance, chair rise, and grip strength). Logistic regression was used to assess the relationship between physical function operationalized as (i) at least one limitation, (ii) presence or absence of limitations in each individual domain/test, and (iii) number of domains/tests with limitations, with disability. RESULTS In the 21,241 participants with self-reported function data, the odds of disability were 1.87 (95% CI: 1.56-2.24), 6.78 (5.68-8.08), and 14.43 (11.50-18.1) for one, two, and three limited domains, respectively. In the 30,097 participants with performance-based measures of function, the odds of disability ranged from 1.53 (1.33-1.76) for one test limited to 14.91 (11.56-19.26) for all five tests limited. CONCLUSIONS Both performance-based and self-report measures of physical function were associated with disability. Each domain and performance test remained associated with disability after adjustment for the other domains and tests. Disability risk was higher when the number of self-report domains and performance-based limitations increased.

中文翻译：

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在加拿大衰老纵向研究中，自我报告的和基于表现的身体机能与日常生活能力障碍之间的联系。

背景技术身体功能的局限性是在残疾之前发生的，并且是预防或延缓成年人衰老的目标。本文的目的是评估自我报告与基于绩效的身体机能残疾指标之间的关系。方法使用加拿大纵向老龄化研究（n = 51,338）的基线数据（2012-2015）。残疾被定义为限制了14种日常生活活动中的至少一项。使用三个领域（上身，下身和敏捷度）中的14个问题和五个基于性能的测试（步态速度，起步和走动，单腿姿势，椅子抬高和握力）来测量身体机能。使用Logistic回归评估以（i）至少一个限制进行操作的身体机能之间的关系，（ii）每个单独的域/测试中是否存在限制，以及（iii）有限制且具有残疾的域/测试的数量。结果在21,241名具有自我报告功能数据的参与者中，伤残几率分别为1、2和3，分别为1.87（95％CI：1.56-2.24），6.78（5.68-8.08）和14.43（11.50-18.1）。域。在30097名参与者中，他们采用了基于绩效的功能测度，其中一项测试的残障几率在1.53（1.33-1.76）之间，而所有五项测试的残障几率在14.91（11.56-19.26）之间。结论身体功能的基于表现的和自我报告的测量都与残疾有关。在针对其他领域和测试进行调整之后，每个领域和性能测试仍与残障相关。