Regulating the local availability of tobacco retailing in Madrid, Spain: a GIS study to evaluate compliance

Background In Spain, tobacco sales are limited to tobacco-exclusive stores and associated vending machines. A minimum of 150 m between stores is required, unless they exceed a legal sales threshold. Minimum distances to schools are recommended but not defined. We evaluated compliance with these regulations in Madrid, Spain. Methods Information about tobacco-exclusive stores and their sales volume was obtained in 2014. We used geographic...