Table 3 Characteristics of an intervention that aims to reduce the incidence and severity of sports concussion in a youth sports setting

- Be applicable to the national context of youth sports concussion, which has an estimated incidence of over a million injuries per year (Bryan et al. 2016) in a wide variety of settings, many of which do not have onsite health care providers

- Be capable of effecting change at multiple levels of the socio-ecological model (individual, interpersonal, community/environmental, and legislative)

- Address both concussion risk reduction such as head impact reduction (primary prevention) and management of concussion (secondary prevention), since narrowly focused programs will not be adopted and maintained by sports communities and will not fully address concussions from the prevention and care standpoint

- Be flexible enough to adapt to diverse settings, so that social equity concerns are not exacerbated by the intervention