Table 1 Definitions and method of assessment for domains and subdomains
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 |