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Harmonising data on the correlates of physical activity and sedentary behaviour in young people: methods and lessons learnt from the international Children's Accelerometry database (ICAD)

Atkin, Andrew J., Biddle, Stuart J. H., Broyles, Stephanie T., Chinapaw, Mai, Ekelund, Ulf, Esliger, Dale W., Hansen, Bjorge H., Kriemler, Susi, Puder, Jardena J., Sherar, Lauren B., van Sluijs, Esther M. F., International Children’s Accelerometry Database (ICAD) Collaborators and Timperio, Anna 2017, Harmonising data on the correlates of physical activity and sedentary behaviour in young people: methods and lessons learnt from the international Children's Accelerometry database (ICAD), International journal of behavioral nutrition and physical activity, vol. 14, pp. 1-12, doi: 10.1186/s12966-017-0631-7.

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Title Harmonising data on the correlates of physical activity and sedentary behaviour in young people: methods and lessons learnt from the international Children's Accelerometry database (ICAD)
Author(s) Atkin, Andrew J.
Biddle, Stuart J. H.
Broyles, Stephanie T.
Chinapaw, Mai
Ekelund, Ulf
Esliger, Dale W.
Hansen, Bjorge H.
Kriemler, Susi
Puder, Jardena J.
Sherar, Lauren B.
van Sluijs, Esther M. F.
International Children’s Accelerometry Database (ICAD) Collaborators
Timperio, AnnaORCID iD for Timperio, Anna orcid.org/0000-0002-8773-5012
Journal name International journal of behavioral nutrition and physical activity
Volume number 14
Article ID 174
Start page 1
End page 12
Total pages 12
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2017-12-20
ISSN 1479-5868
Keyword(s) Adolescents
Children
Data pooling
ICAD
Physical activity
Retrospective harmonisation
Sedentary behaviour
Accelerometry
Adolescent
Child
Child, Preschool
Databases, Factual
Exercise
Feasibility Studies
Female
Health Behavior
Humans
Learning
Longitudinal Studies
Male
Retrospective Studies
Sedentary Lifestyle
Social Environment
Socioeconomic Factors
Summary Background
Large, heterogeneous datasets are required to enhance understanding of the multi-level influences on children’s physical activity and sedentary behaviour. One route to achieving this is through the pooling and co-analysis of data from multiple studies. Where this approach is used, transparency of the methodology for data collation and harmonisation is essential to enable appropriate analysis and interpretation of the derived data. In this paper, we describe the acquisition, management and harmonisation of non-accelerometer data in a project to expand the International Children’s Accelerometry Database (ICAD).

Method
Following a consultation process, ICAD partners were requested to share accelerometer data and information on selected behavioural, social, environmental and health-related constructs. All data were collated into a single repository for cataloguing and harmonisation. Harmonised variables were derived iteratively, with input from the ICAD investigators and a panel of invited experts. Extensive documentation, describing the source data and harmonisation procedure, was prepared and made available through the ICAD website.

Results

Work to expand ICAD has increased the number of studies with longitudinal accelerometer data, and expanded the breadth of behavioural, social and environmental characteristics that can be used as exposure variables. A set of core harmonised variables, including parent education, ethnicity, school travel mode/duration and car ownership, were derived for use by the research community. Guidance documents and facilities to enable the creation of new harmonised variables were also devised and made available to ICAD users. An expanded ICAD database was made available in May 2017.

Conclusion
The project to expand ICAD further demonstrates the feasibility of pooling data on physical activity, sedentary behaviour and potential determinants from multiple studies. Key to this process is the rigorous conduct and reporting of retrospective data harmonisation, which is essential to the appropriate analysis and interpretation of derived data. These documents, made available through the ICAD website, may also serve as a guide to others undertaking similar projects.
Language eng
DOI 10.1186/s12966-017-0631-7
Field of Research 11 Medical And Health Sciences
13 Education
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30108747

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.