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Table 1 Definitions and method of assessment for domains and subdomains

From: Using accelerometers and global positioning system devices to assess gender and age differences in children’s school, transport, leisure and home based physical activity

  Category Method Assessment na Buffer (meter)
Leisure Domain Objective database Sum of all leisure subdomains. 367 10
School grounds Subdomain Objective database Addresses of public schools were provided by the City of Copenhagen. They were geocoded and manually digitalized in GIS. 362 10
Clubs Subdomain Objective database Addresses of public schools were provided by the City of Copenhagen. They were geocoded and school grounds were digitalized manually in GIS. 239 10
Sports facilities Subdomain Objective database All sports facilities within the City of Copenhagen were identified from municipal websites, and included if they offered activities for 10–16 years olds. All addresses were geocoded and manually digitalized in GIS. 251 10
Playgrounds Subdomain Objective database Addresses of playgrounds were provided by the City of Copenhagen. They were geocoded and playground areas digitalized in GIS. 169 10
Urban green space Subdomain Objective database All urban green spaces were available from the Danish Geodata Agency. 352 10
Shopping centers Subdomain Objective database Major indoor shopping centers were identified online, and manually digitalized in GIS. 100 10
Other places Subdomain Unclassified epochs Epochs not categorized as school, home, transport and other leisure sub-domains were categorized as other places. 367 n/a
School Domain School schedule adjusted for self-reported changes An epoch was assigned to school, recess or PE according to the school schedule if a) the student diary reported it was a usual day or b) no student diary data was available (17%). Otherwise diary data was used. 365 n/a
Recess Subdomain 360 n/a
PE Subdomain 206 n/a
Transport Domain Objective PALMS All epochs classified by PALMS as trips, and not part of any other domain. 366 n/a
Active Subdomain Objective PALMS Trips categorized as walking or biking and not identified within another domain. 364 n/a
Passive Subdomain Objective PALMS Trips categorized as vehicle and not identified within any other domain. 246 n/a
Home Domain Objective database All students’ primary addresses were geocoded. Each home was digitalized manually in GIS. A house was defined as the parcel, an apartment was defined as the building and adjacent outdoor area. 366 10
  1. aNumber of participants who were present in a domain/subdomain during data collection and accummulated MVPA.
  2. GIS, Geographical Information System; n/a, not applicable; PALMS, Personal Activity and Location Measurement System; PE, Physical Education.