Correlates of Agreement between Accelerometry and Self-reported Physical Activity. Issue 6 (June 2016)

• Record Type: Journal Article
• Authors: CERIN, ESTER; CAIN, KELLI L.; OYEYEMI, ADEWALE L.; OWEN, NEVILLE; CONWAY, TERRY L.; COCHRANE, TOM; VAN DYCK, DELFIEN; SCHIPPERIJN, JASPER; MITÁŠ, JOSEF; TOFTAGER, METTE; AGUINAGA-ONTOSO, INES; SALLIS, JAMES F.
• Is Part Of: Medicine and science in sports and exercise. Volume 48:Issue 6(2016)
• Publication Date: 2016-06
• Subjects: INTERNATIONAL PHYSICAL ACTIVITY QUESTIONNAIRE -- LONG FORM -- INTERNATIONAL -- SOCIODEMOGRAPHIC FACTORS -- MEASUREMENT -- EXERCISE -- SEDENTARY TIME; Sports medicine -- Periodicals; Exercise -- Physiological aspects -- Periodicals; Exercise -- Health aspects -- Periodicals; 612.044
• DOI: 10.1249/MSS.0000000000000870
• Languages: English
• ISSNs: 0195-9131

Abstract

ABSTRACT: Purpose: 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. Methods: 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. Results: 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. Conclusions: 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. Abstract : Supplemental digital content is available in the text.