Finding Primary Care-Repurposing Physician Registration Data to Generate a Regionally Accurate List of Primary Care Clinics: Development and Validation of an Open-Source Algorithm.

Background: Some Canadians have limited access to longitudinal primary care, despite its known advantages for population health. Current initiatives to transform primary care aim to increase access to team-based primary care clinics. However, many regions lack a reliable method to enumerate clinics, limiting estimates of clinical capacity and ongoing access gaps.

Does Activity Space Size Influence Physical Activity Levels of Adolescents? - A GPS study of an urban environment.

Background: Physical activity (PA) is closely linked with child and youth health, and active travel may be a solution to enhancing PA levels. Activity spaces depict the geographic coverage of one's travel. Little is known about activity spaces and PA in adolescents.

They go straight home - don't they? Using global positioning systems to assess adolescent school-travel patterns.

Background: Active travel to school is a potential source of physical activity for adolescents, but its assessments often rely on assumptions around travel patterns. Global positioning system (GPS) and accelerometry provide an objective assessment of physical activity from school-travel and the context in which it occurs (where, when, how long).

Purpose: To describe school-travel patterns of adolescents and to compare estimates of physical activity during the hour before/after school - a commonly used proxy for school-travel time - with physical activity accrued during school trips identified through GPS ('GPS-trips').