"Sixty-nine million (95% CI 64-74 million) individuals worldwide are estimated to sustain a TBI each year. Falls and road injuries were the leading causes of new cases of TBI. Head injury following road traffic collision is more common in low middle income countries"
Estimating the global incidence of traumatic brain injury. Dewan MC1,2, Rattani A1,3, Gupta S4, Baticulon RE5, Hung YC1, Punchak M1,6, Agrawal A7, Adeleye AO8,9, Shrime MG1,10, Rubiano AM11, Rosenfeld JV12,13, Park KB1.J Neurosurg. 2018 Apr 1:1-18. doi: 10.3171/2017.10.JNS17352