title: "Socioeconomic inequalities in children's accessibility to food retailing: Examining the roles of mobility and time".
abstract: Childhood overweight and obesity rates in Canada are at concerning levels, more apparently so for individuals of lower socioeconomic status (SES). Accessibility to food establishments likely influences patterns of food consumption, a contributor to body weight. Previous work has found that households living in lower income neighbourhoods tend to have greater geographical accessibility to unhealthy food establishments and lower accessibility to healthy food stores. This study contributes to the literature on neighbourhood inequalities in accessibility to healthy foods by explicitly focusing on children, an understudied population, and by incorporating mobility and time into metrics of accessibility. Accessibility to both healthy and unhealthy food retailing is measured within children's activity spaces using Road Network and Activity Location Buffering methods. Weekday vs. weekend accessibility to food establishments is then compared. The results suggest that children attending lower SES schools had almost two times the density of fast food establishments and marginally higher supermarket densities in their activity spaces. Children attending higher SES schools also had much larger activity spaces. All children had higher supermarket densities during weekdays than on weekend days.
authors.affiliation: University of Toronto at Mississauga, Room 3211 Davis Building, 3359 Mississauga Rd. N, Mississauga, ON, L5L 1C6, Canada. Electronic address: lea.ravensbergen@mail.utoronto.ca.
authors.forename: Léa
authors.initials: L
authors.lastname: Ravensbergen
authors.affiliation: University of Toronto at Mississauga, Room 3264 Davis Building, 3359 Mississauga Rd. N., Mississauga, ON, L5L 1C6, Canada. Electronic address: ron.buliung@utoronto.ca.
authors.forename: Ron
authors.initials: R
authors.lastname: Buliung
authors.affiliation: University of Toronto at Mississauga, Room 3283 Davis Building, 3359 Mississauga Rd. N., Mississauga, ON, L5L 1C6, Canada. Electronic address: kathi.wilson@utoronto.ca.
authors.forename: Kathi
authors.initials: K
authors.lastname: Wilson
authors.affiliation: University of British Columbia, D H Copp Building 4606, 2146 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada. Electronic address: guy.faulkner@ubc.ca.
authors.forename: Guy
authors.initials: G
authors.lastname: Faulkner
mesh_terms: D002170:Canada / Q000453:epidemiology; D002648:Child; D003132:Commerce / Q000706:statistics & numerical data*; D004779:Environment Design / Q000706:statistics & numerical data; D005523:Food Supply / Q000706:statistics & numerical data*; D006801:Humans; D063766:Pediatric Obesity / Q000453:epidemiology; D012111:Residence Characteristics / Q000706:statistics & numerical data*; D012574:Schools / Q000706:statistics & numerical data*; D012923:Social Class; D013997:Time Factors; D014186:Transportation / Q000706:statistics & numerical data
keywords: Activity space; Canada; Children; Food accessibility; Health; Mobility; Socioeconomic status