http://stanmed.stanford.edu/2013fall/article2.html Um bom artigo sobre o assunto Derfel, com destaque meu especial a parte:
It would be comforting to attribute the poor ranking to a quirk in how the deaths are calculated. After all, not all countries define birth the same way. For example, in the United States, arrivals of all living infants are counted as births, but a few European countries (the Czech Republic, France, Ireland, the Netherlands, Norway and Poland) have more restrictive definitions. For example, France and the Netherlands report live births only if the infant weighs at least 500 grams — a little more than a pound — or were born at 22 weeks’ gestation or later.
But these reporting differences cannot account for the full extent of the gap between countries, says Paul Wise, MD, a pediatrician at Packard Children’s and a health policy analyst at Stanford. “The reporting differences are a minor part of the story but not an excuse for why the U.S has such a high mortality rate.”