Comparing these findings with data from developed countries, Luis figured that a Costa Rican man at age 60 had about twice the chance of reaching age 90 as did a man living in the United States, France, or even Japan. He also found that if a male reached 90, he could expect, on average, another 4.4 years of life—again a life expectancy higher than in most developed countries. If Rosero-Bixby’s numbers were correct, it was an extraordinary find. Costa Rica spends only 15 percent of what America does on health care, yet its people appeared to be living longer, seemingly healthier lives than
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