Nigeria’s estimated 40,000 maternal deaths account for a staggering 14% of the world’s annual total — a statistic from a country that represents just 2.6% of the world’s population. Mobile blood banks, free health care for mothers and newborns in some Nigerian states, and community health care centers in underserved regions have led to noticeable reductions in maternal deaths. But to date, there has been no systematic assessment of the efficacy of any given health intervention, and analysis is complicated by the fact that the statistics are scattered and often undercount actual deaths. The researchers, in partnership with Nigeria Health Watch, will centralize health data from the WHO, World Bank and others, and research shifts in technology, policy and culture that have impacted the Nigerian maternal death rate.