"Black men are half as likely to die at any given time if they're in prison than if they aren't, suggests a new study of North Carolina inmates."
Two more paragraphs:
"White prisoners died of cardiovascular diseases as often as expected and died of cancer slightly more often than non-prisoners.
Black inmates, by contrast, were between 30 and 40 percent less likely to die of those causes than those who weren't incarcerated. They were also less likely to die of diabetes, alcohol- and drug-related causes, airway diseases, accidents, suicide and murder than black men not in prison."