“…A couple of studies from Brazil have documented increases in motorcycle injuries at a national level (Chandran, Sousa, Guo, Bishai, & Pechansky, 2012;Instituto de Pesquisa Econômica Aplicada, 2006) or described motorcycle injuries in more detail in Sao Paulo state (Gawryszewski et al, 2009;Silva, Cardoso, & Santos, 2011). Another study from Cali, Colombia documented increases in motorcycle mortality and estimated changes associated to the implementation of a helmet law (Espitia-Hardeman, V et al, 2008), and one from Jamaica documented associated morbidity and mortality among people seen at a large hospital (Crandon, Harding, Cawich, McDonald, & Fearron-Boothe, 2009). …”