超重者死亡率低于正常体重者？(1/2)
概述：最新研究表明，超重或轻度肥胖者比正常体重者早逝风险低。Hints:
National Center for Health Statistics
the United States
Centers for Disease Control and Prevention
Katherine Flegal
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http://t1.g.hjfile.cn/listen/201301/201301130205165461052.mp3New research shows that overweight or even mildly obese people have a lower risk of early death than people considered to be normal weight.
Researchers examined the results of 97 studies. Most of the studies were less than ten years old. They included almost 3 million adults from around the world, including the United States, Canada, China, Taiwan, Brazil, India and Mexico.
The researchers work at the National Center for Health Statistics, part of the United States Centers for Disease Control and Prevention.
They found that people who are considered overweight or slightly obese were 5-6% less likely to die from all causes than people of normal weight. People with higher obesity ratings, however, had almost a 30% greater risk of death compared to normal-weight individuals.
Katherine Flegal was the lead author of the study. She says she was not surprised that overweight people would not have a higher risk of death.新研究表明，超重或轻度肥胖人士早逝风险比人们所认为的体重正常人士要低。
研究人员检查了97项研究的结果，这些研究大多是在10年内完成的。研究（对象）涵盖了世界各地近300万人，其中包括美国、加拿大、中国、台湾、巴西、印度和墨西哥。
研究人员在国家卫生统计中心工作，该统计中心属于美国疾病控制和预防中心的一个部分。
他们发现人们认为的超重或轻微肥胖的人比那些体重正常的人死于各种诱因的可能性要低5-6%，而过度肥胖的人比体重正常的人死亡的风险要高将近30%。
凯瑟琳·弗莱戈是该研究的第一作者，对于超重的人不会有更高死亡风险的这一结果，她说她并不感到惊讶。
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