One thing that isn't clear to me (and didn't seem to be addressed in any of the charts) is the percentage of the life expectancy disparity that is explained by

One thing that isn't clear to me (and didn't seem to be addressed in any of the charts) is the percentage of the life expectancy disparity that is explained by the "likelihood of dying before age 40" disparity. To me, this is the key statistic that the author is missing because the original article isn't really about causes - which are only tangentially mentioned.