HCR Update from Mark Sanna: Deaths before age 50 accounted for about two-thirds of the difference in life expectancy between males in the United States and their counterparts in 16 other developed countries, and about one-third of the difference for females. The countries in the analysis included Canada, Japan, Australia, France, Germany and Spain. Car accidents, gun violence and drug overdoses were major contributors to years of life lost by Americans before age 50.