Introduction: Active commuting to school in Denmark is common but differentiates between schools. What is the association between the surrounding school environment assessed with a three component index and active commuting in adolescents? Methods: Materials: The study material consists of 1348 adolescents (11-13 years) attending 5th or 6th grade in 14 different schools in Region Southern Denmark. Measures: - 5-day commuting diary. Mode of transport was reported from home to school and return (walk, bike, car, bus, train and other). - Web based questionnaire to asses perceived safety of bike route to and from school (very safe to very unsafe). - Area median household income (statistic records). GIS measures: -Individual network distance from home to school. -Index consisting of summed rank-score of the following three components (1-14 each; summed 3-42): Pedshed: ‘Area of 2 km school service area’ / ‘2 km school buffer (euclidean)’1). Vehicular Traffic Exposure: ‘Length of larger roads (>6 meters wide)’ / ’minor roads (<6 meters wide)’ 1). Urban density: Number of addresses within 2 km school service area. Results: The 14 schools had a share of all-day active commuters between 49 - 84 % (walk or cycle every day to and from school) and a summed rank-score between 14-36 (index). 86 % reported a safe or very safe cycle route to school. The OR for all-day active commuting was 1.05(p=0.09) for the three component index in the single factor model and 1.02 (0.47) in the adjusted model. The OR for all-day active commuting was 0.58 (p<0.005) per extra kilometer school distance. To have an ‘unsafe’ or ‘very unsafe’ route to school was associated with an OR on 0.50 (p<0.05) and 0.23(p<0.05) for all-day active commuting respectively compared to having a ‘very safe’ route. Discussion: The three component index didn’t provide a clear association to all-day active commuting. The reason could be small variation between the school surroundings in the study. Route length and perceived route safety was strongly and significantly associated with the likelihood of all-day active commuting. Conclusion: The index of the school surroundings didn’t associate with all-day active commuting in adolecscents, while individual route length and perceived route safety did. Acknowledgements: The Space study is funded by the Tryg Foundation.
aktiv transport, fysisk aktivitet, fysiske omgivelser