Correlates of Agreement between Accelerometry and Self-reported Physical Activity.
Correlates of Agreement between Accelerometry and Self-reported Physical Activity.
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DOI：
10.1249/mss.0000000000000870
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发表时间：
2016-06
影响因子：
4.1
通讯作者：
Sallis JF
中科院分区：
文献类型：
--
作者：
Cerin E;Cain KL;Oyeyemi AL;Owen N;Conway TL;Cochrane T;VAN Dyck D;Schipperijn J;Mitáš J;Toftager M;Aguinaga-Ontoso I;Sallis JF
文本中提供了补充的数字内容。了解影响准确评估体力活动(PA)和久坐行为(SB)的因素对于测量发展、流行病学研究和干预非常重要。这项研究检查了六个国家的自我报告(国际体力活动问卷-长格式[iPAQ-LF])和基于加速度计的PA和SB估计之间的一致性，并确定了方法间一致性的相关因素。2002-2011年，来自6个国家(比利时、捷克共和国、丹麦、西班牙、英国和美国)的8个城市的3865名成人参与者收集了自我报告和客观(基于加速度计)PA和SB数据。方法间的相对一致性(相关性)和绝对不一致性(概念和强度匹配的iPAQ-LF和基于加速度计的PA和SB变量之间的平均差异)被评估。此外，社会人口学特征和PA模式也被检验为方法间一致性的相关因素。观察到的相对一致性(iPAQ-LF与基于加速度计的PA和SB变量的关系)是小到中等的(r=0.05-0.37)，并受到社会人口统计(年龄、性别、体重状况和教育)和行为(PA类型)因素的调节。绝对的分歧很大，参与者自我报告说，中等到剧烈强度的PA比加速度计的PA强度和总时间更高。此外，自我报告的坐着时间低于基于加速计的久坐行为。在调整了社会人口学和行为因素后，iPAQ-LF和基于加速度计的PA变量对之间的绝对不一致在不同城市/国家之间仍然存在显著差异。目前的发现表明，系统的文化和/或语言和社会人口学差异在iPAQ-LF和基于加速度计的PA和SB变量之间绝对一致。这些结果对解释国际PA和SB数据以及相关/决定因素研究具有重要意义。他们呼吁进一步努力改进这些措施。
Supplemental digital content is available in the text. Understanding factors that influence accurate assessment of physical activity (PA) and sedentary behavior (SB) is important to measurement development, epidemiologic studies, and interventions. This study examined agreement between self-reported (International Physical Activity Questionnaire—Long Form [IPAQ-LF]) and accelerometry-based estimates of PA and SB across six countries and identified correlates of between-method agreement. Self-report and objective (accelerometry-based) PA and SB data were collected in 2002–2011 from 3865 adult participants in eight cities from six countries (Belgium, Czech Republic, Denmark, Spain, United Kingdom, and United States). Between-method relative agreement (correlation) and absolute disagreement (mean difference between conceptually and intensity-matched IPAQ-LF and accelerometry-based PA and SB variables) were estimated. Also, sociodemographic characteristics and PA patterns were examined as correlates of between-method agreement. Observed relative agreement (relationships of IPAQ-LF with accelerometry-based PA and SB variables) was small to moderate (r = 0.05–0.37) and was moderated by sociodemographic (age, sex, weight status, and education) and behavioral (PA-type) factors. The absolute disagreement was large, with participants self-reporting higher PA intensity and total time in moderate-to-vigorous-intensity PA than accelerometry. Also, self-reported sitting time was lower than accelerometry-based sedentary behavior. After adjusting for sociodemographic and behavioral factors, the absolute disagreement between pairs of IPAQ-LF and accelerometry-based PA variables remained significantly different across cities/countries. Present findings suggest systematic cultural and/or linguistic and sociodemographic differences in absolute agreement between the IPAQ-LF and the accelerometry-based PA and SB variables. These results have implications for the interpretation of international PA and SB data and correlate/determinant studies. They call for further efforts to improve such measures.