Just off the top of my head, I would think that the quality of healthcare in a nation is only a portion of the reason for a certain life expectancy. Not having studied the subject, I would think that lifestyle, diet, and various cultural factors should also be considered. Example that comes to mind is the recent loss of a cousin. He died of lung cancer that was far advanced before he sought medical help. He smoked like a chimney since he was 17 and never saw a use for doctors although married to a wonderful ICU nurse. This well loved man died at the ripe old age of 57, just 2 months after the diagnosis!