Factors associated with participant compliance in studies using accelerometers
Factors associated with participant compliance in studies using accelerometers
Some participants wear the accelerometer for the duration specified by the researchers but many do not. We investigated a range of demographic factors associated with participant compliance in obtaining analyzable accelerometer data. A total of 3601 participants (aged 47.6 ± 13.1 years, 44.6% male) were included. They were asked to wear an accelerometer (ActiGraph) for four consecutive days after completing a household survey during March 2009-January 2011 in Hong Kong. Participants wore the accelerometer on average for 13.9. h in a 24-h day. No significant difference was found between males and females (p = 0.38). Using log-linear regression, it was found that older participants (0.5% more wearing hours for each year of age, p< 0.001), those with full-time job (p< 0.01), with tertiary education (p< 0.01), non-smokers (p< 0.01) and with high self-reported health (p< 0.05) wore the accelerometer for more hours. These results provide details for estimating compliance rates for samples with different characteristics and thus sample size calculation to account for participant compliance.
Accelerometry, Activity monitor, Adherence, Participation, Physical activity
912-917
Lee, Paul H.
02620eab-ae7f-4a1c-bad1-8a50e7e48951
Macfarlane, Duncan J.
9e6efb95-49a0-472a-97d0-26735bff7389
Lam, T. H.
fabba29d-16a1-40a9-b9c7-dc8e61ebbeba
September 2013
Lee, Paul H.
02620eab-ae7f-4a1c-bad1-8a50e7e48951
Macfarlane, Duncan J.
9e6efb95-49a0-472a-97d0-26735bff7389
Lam, T. H.
fabba29d-16a1-40a9-b9c7-dc8e61ebbeba
Lee, Paul H., Macfarlane, Duncan J. and Lam, T. H.
(2013)
Factors associated with participant compliance in studies using accelerometers.
Gait and Posture, 38 (4), .
(doi:10.1016/j.gaitpost.2013.04.018).
Abstract
Some participants wear the accelerometer for the duration specified by the researchers but many do not. We investigated a range of demographic factors associated with participant compliance in obtaining analyzable accelerometer data. A total of 3601 participants (aged 47.6 ± 13.1 years, 44.6% male) were included. They were asked to wear an accelerometer (ActiGraph) for four consecutive days after completing a household survey during March 2009-January 2011 in Hong Kong. Participants wore the accelerometer on average for 13.9. h in a 24-h day. No significant difference was found between males and females (p = 0.38). Using log-linear regression, it was found that older participants (0.5% more wearing hours for each year of age, p< 0.001), those with full-time job (p< 0.01), with tertiary education (p< 0.01), non-smokers (p< 0.01) and with high self-reported health (p< 0.05) wore the accelerometer for more hours. These results provide details for estimating compliance rates for samples with different characteristics and thus sample size calculation to account for participant compliance.
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Published date: September 2013
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Funding Information:
This study was a part of the project “FAMILY: a Jockey Club Initiative for a Harmonious Society” supported by The Hong Kong Jockey Club Charities Trust. The funding body played no part in the data analysis, drafting of the manuscript, and the decision to submit for publication. We sincerely thank Prof. Gabriel Leung, Dr. Wilson W. S. Tam, Dr. Ying-Ying Yu, Dr. Ben K. K. Li, and Mr. Paul T. K. Wong (School of Public Health, The University of Hong Kong) for their role in the development of the survey instruments and the preparatory work for this research. Conflict of interest
Keywords:
Accelerometry, Activity monitor, Adherence, Participation, Physical activity
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Local EPrints ID: 480709
URI: http://eprints.soton.ac.uk/id/eprint/480709
ISSN: 0966-6362
PURE UUID: 7576508e-2c9d-4b1f-9ba0-e787a32df2b2
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Date deposited: 08 Aug 2023 16:53
Last modified: 18 Mar 2024 04:09
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Author:
Paul H. Lee
Author:
Duncan J. Macfarlane
Author:
T. H. Lam
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