Trends in motorcycle accident mortality in Lagos: Consequences of government policy changes.

Motorcycle use is associated with fatal crashes. The government of Lagos State, Nigeria has introduced legislation and policies to address this issue. To examine trends in motorcycle accident mortality in Lagos over a 10-year period (January 2010 - December 2019) and consider the impact of transportation legislation and policy changes on deaths from motorcycle accidents during that period. A retrospective analysis of all autopsies performed on decedents from motorcycle crashes between January 2010 and December 2019. There were 211 cases of motorcycle accident-related deaths. Most victims were males (89.1%), the peak age was 31-40 years (30.8%), and majority were riders and pillion passengers (39.8% each). Head injury (51.6%) was the most common injury and cause of death. There was a general decline in case numbers from 2010 to 2019. Following new legislation that introduced a motorcycle hailing service between 2017 and 2019, there was a 17.4% reduction in fatalities from accidents. There has been a general downward trend in fatal motorcycle accidents in Lagos from 2010 to 2019. Changes in government transportation policies have likely had consequences on motorcycle accident-related mortality.