http://goo.gl/HJlBGJ
The analysis of the data shows that cocaine consumption multiplies the risk of dying by four compared with non-consumption. Specifically, the percentage of cases among the deceased owing to sudden death in which drug consumption was detected was nearly 10%, while among the people who had died of other causes it was 2%. And in comparison with the estimated data in the general population, the proportion of people who used cocaine recently was between 13 and 58 times higher in the cases of sudden death than in the general population. Another risk factor detected was sex: the risk in men was 1'6 higher than in women.