“…Implementing state, provincial, or local laws is associated with increased helmet use, according to research based on both survey data (Dannenberg, Gielen, Beilenson, Wilson, & Downloaded by [McGill University Library] at 08:38 21 November 2014 Joffe, 1993;Dellinger & Kresnow, 2010;Caplow & Runyan, 1995) and observational data (Dannenber et al, 1993;Karkhaneh, Rowe, Saunders, Voaklander, & Hagel, 2011). Despite the effectiveness of helmet use legislation, and despite strong parental support for legislating bicycle helmets for children (Caplow & Runyan, 1995;Lohse, 2003;Ortega et al, 2004), currently only 22 states (including the District of Columbia) have statewide laws (Bicycle Helmet Safety Institute, 2012).…”