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International Physical Activity and Built Environment Study of adolescents: IPEN Adolescent design, protocol and measures

Cain, KL, Salmon, Jo-Ann, Conway, TL, Cerin, E, Hinckson, E, Mitáš, J, Schipperijn, J, Frank, LD, Anjana, RM, Barnett, A, Dygrýn, J, Islam, MZ, Molina-García, J, Moran, M, Wan Muda, WAM, Oyeyemi, AL, Reis, R, Santos, MP, Schmidt, T, Schofield, GM, Timperio, Anna, Van Dyck, D and Sallis, JF 2021, International Physical Activity and Built Environment Study of adolescents: IPEN Adolescent design, protocol and measures, BMJ Open, vol. 11, pp. 1-25, doi: 10.1136/bmjopen-2020-046636.

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Title International Physical Activity and Built Environment Study of adolescents: IPEN Adolescent design, protocol and measures
Author(s) Cain, KL
Salmon, Jo-AnnORCID iD for Salmon, Jo-Ann orcid.org/0000-0002-4734-6354
Conway, TL
Cerin, E
Hinckson, E
Mitáš, J
Schipperijn, J
Frank, LD
Anjana, RM
Barnett, A
Dygrýn, J
Islam, MZ
Molina-García, J
Moran, M
Wan Muda, WAM
Oyeyemi, AL
Reis, R
Santos, MP
Schmidt, T
Schofield, GM
Timperio, AnnaORCID iD for Timperio, Anna orcid.org/0000-0002-8773-5012
Van Dyck, D
Sallis, JF
Journal name BMJ Open
Volume number 11
Article ID e046636
Start page 1
End page 25
Total pages 25
Publisher BMJ
Place of publication London, Eng.
Publication date 2021
ISSN 2044-6055
2044-6055
Keyword(s) epidemiology
preventive medicine
public health
statistics & research methods
Summary Introduction Only international studies can provide the full variability of built environments and accurately estimate effect sizes of relations between contrasting environments and health-related outcomes. The aims of the International Physical Activity and Environment Study of Adolescents (IPEN Adolescent) are to estimate the strength, shape and generalisability of associations of the community environment (geographic information systems (GIS)-based and self-reported) with physical activity and sedentary behaviour (accelerometer-measured and self-reported) and weight status (normal/overweight/obese).Methods and analysisThe IPEN Adolescent observational, cross-sectional, multicountry study involves recruiting adolescent participants (ages 11–19 years) and one parent/guardian from neighbourhoods selected to ensure wide variations in walkability and socioeconomic status using common protocols and measures. Fifteen geographically, economically and culturally diverse countries, from six continents, participated: Australia, Bangladesh, Belgium, Brazil, Czech Republic, Denmark, Hong Kong SAR, India, Israel, Malaysia, New Zealand, Nigeria, Portugal, Spain and USA. Countries provided survey and accelerometer data (15 countries), GIS data (11), global positioning system data (10), and pedestrian environment audit data (8). A sample of n=6950 (52.6% female; mean age=14.5, SD=1.7) adolescents provided survey data, n=4852 had 4 or more 8+ hours valid days of accelerometer data, and n=5473 had GIS measures. Physical activity and sedentary behaviour were measured by waist-worn ActiGraph accelerometers and self-reports, and body mass index was used to categorise weight status.Ethics and disseminationEthical approval was received from each study site’s Institutional Review Board for their in-country studies. Informed assent by adolescents and consent by parents was obtained for all participants. No personally identifiable information was transferred to the IPEN coordinating centre for pooled datasets. Results will be communicated through standard scientific channels and findings used to advance the science of environmental correlates of physical activity, sedentary behaviour and weight status, with the ultimate goal to stimulate and guide actions to create more activity-supportive environments internationally.
Language eng
DOI 10.1136/bmjopen-2020-046636
Indigenous content off
Field of Research 1103 Clinical Sciences
1117 Public Health and Health Services
1199 Other Medical and Health Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30147525

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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.