ABSTRACT

The main aim of this study was to assess the criterion validity of the Sedentary Behavior Questionnaire (SBQ) to measure SB in community-dwelling older adults using thigh-measured accelerometry as the criterion method. 801 participants (75.6 ± 6.1 years old, 57.6% females) provided valid thigh-based accelerometer data (activPAL/Axivity) and completed the SBQ. Criterion validity was assessed using Spearman’s Rho coefficients. Bland–Altman plots, including 95% limits of agreement and Intraclass Correlation Coefficient (ICC), were used to assess the agreement between self-report and device-measured daily SB time. Strength of the association was examined using multiple linear regression. There was a weak correlation (Rho = 0.25, p < .001) between self-reported and device-based SB measures. The SBQ under-estimated daily SB time compared to accelerometry. Our results highlighted an overall weak-to-moderate correlation between measures, with significant differences between each country’s version. Researchers should be cautious when using the SBQ to provide an estimation of SB time in older adults.

摘要

本研究的主要目的是评估久坐行为问卷 (SBQ) 的标准有效性，以使用大腿测量的加速度计作为标准方法来测量社区居住老年人的 SB。801 名参与者（75.6 ± 6.1 岁，57.6% 女性）提供了有效的基于大腿的加速度计数据（activPAL/Axivity）并完成了 SBQ。使用 Spearman 的 Rho 系数评估标准有效性。Bland-Altman 图，包括 95% 的一致性限制和类内相关系数 (ICC)，用于评估自我报告和设备测量的每日 SB 时间之间的一致性。使用多元线性回归检查关联的强度。相关性较弱（Rho = 0.25，p< .001) 在自我报告和基于设备的 SB 测量之间。与加速度计相比，SBQ 低估了每日 SB 时间。我们的结果突出了衡量指标之间的整体弱到中度相关性，每个国家的版本之间存在显着差异。研究人员在使用 SBQ 估计老年人的 SB 时间时应谨慎。