Liangruenrom Nucharapon, Suttikasem Kanyapat, Widyastari Dyah Anantalia, Potharin Danusorn, Katewongsa Piyawat
Institute for Population and Social Research, Mahidol University, Phutthamonthon, Nakhon Pathom, 73170, Thailand.
J Exerc Sci Fit. 2025 Apr;23(2):133-140. doi: 10.1016/j.jesf.2025.03.003. Epub 2025 Mar 22.
Time-use surveys are considered a valid alternative for assessing physical activity (PA) and sedentary behavior (SB). The International Classification of Activities for Time-Use Statistics (ICATUS) has been widely adopted, as a standardized framework for categorizing time-use data. A classification system has been developed to classify ICATUS-based activities into sleep, SB, light PA (LPA), and moderate-to-vigorous PA (MVPA). This study aimed to evaluate the reliability and validity of ICATUS-based time-use classifications.
Participants aged 18-59 years were recruited from five organizations located in the Bangkok metropolitian area ( = 220). The study was conducted from September to October 2022. Participants wore an accelerometer for ten consecutive days and completed two-day time-use diaries. The intraclass correlation coefficient (ICC) was calculated to assess test-retest reliability between the first and second entries of time-use surveys, as well as for accelerometer data. Validity was assessed by comparing the two time-use surveys with corresponding accelerometer data using Spearman correlations.
Test-retest reliability showed strong absolute agreement in the average time-use estimates for sleep and SB, with ICCs of 0.80 and 0.83, respectively. Moderate agreement was observed for LPA (ICC = 0.71) and MVPA (ICC = 0.51). Moderate validity correlations were found for SB, while LPA showed weak correlations, and MVPA results were inconsistent.
ICATUS-based time-use data demonstrated strong reliability and moderate validity for SB, and moderate reliability and low validity for PA in working adults. The classification system appears to be a verified tool, supporting its applicability of time-use data, particularly in developing countries.
时间使用调查被认为是评估身体活动（PA）和久坐行为（SB）的有效替代方法。国际时间使用统计活动分类（ICATUS）已被广泛采用，作为对时间使用数据进行分类的标准化框架。已经开发了一种分类系统，将基于ICATUS的活动分为睡眠、SB、轻度身体活动（LPA）和中度至剧烈身体活动（MVPA）。本研究旨在评估基于ICATUS的时间使用分类的可靠性和有效性。
从曼谷都会区的五个组织招募了18至59岁的参与者（n = 220）。研究于2022年9月至10月进行。参与者连续十天佩戴加速度计，并完成为期两天的时间使用日记。计算组内相关系数（ICC），以评估时间使用调查的第一次和第二次记录之间以及加速度计数据的重测可靠性。通过使用Spearman相关性将两次时间使用调查与相应的加速度计数据进行比较来评估有效性。
重测可靠性在睡眠和SB的平均时间使用估计中显示出很强的绝对一致性，ICC分别为0.80和0.83。LPA（ICC = 0.71）和MVPA（ICC = 0.51）观察到中度一致性。SB发现中度有效性相关性，而LPA显示弱相关性，MVPA结果不一致。
基于ICATUS的时间使用数据在在职成年人中显示出对SB具有很强的可靠性和中度有效性，对PA具有中度可靠性和低有效性。该分类系统似乎是一种经过验证的工具，支持其在时间使用数据中的适用性，特别是在发展中国家。
