Figures for illegal abortions are much more difficult to establish, but more than half the men interviewed in a study in Rio de Janeiro had helped young women obtain illegal abortions. Data from 13 African countries show that girls aged 11 to 19 represent between 39 and 72 percent of all hospital admissions for abortion-related complications. In Nigeria, abortion complications accounted for 72 percent of all deaths to young women under 19.