[1] CN Ctr Injury Res & Policy, Columbus, OH USA
[2] Nationwide Childrens Hosp, Res Inst, Columbus, OH USA
[3] Ohio State Univ, Coll Med, Dept Paediat, Columbus, OH 43210 USA
[4] Sch Publ Hlth, Dept Biostat, Columbus, OH USA
[5] Ohio State Univ, US Dept Phys Med & Rehabil, Columbus, OH 43210 USA
[6] US Ctr Injury Res & Policy, Columbus, OH USA
[7] Ohio Dept Hlth, US Violence & Injury Prevent Program, Columbus, OH 43266 USA