Adolescents’ engagement in multiple risk behaviours is associated with concussion

Background The objective of this study was to investigate the relationship between engagement in multiple risk behaviours (MRB) and concussion amongst youth. Methods This was a cross-sectional study that used survey data collected from 3059 students in grades 6–10 (approximate ages 11–15 years) from Ontario, Canada. Students reported whether or not they had a medically diagnosed concussion within the previous 12 months and the frequency that...