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【medical-news】早产儿成年后不孕机率高
WASHINGTON (Reuters) - The health consequences of being born prematurely are broad and enduring, including a higher risk of death throughout childhood and lower reproduction rates as adults, researchers said on Tuesday.
Those are the findings of a study published in the Journal of the American Medical Association that tracked almost 1.2 million people born in Norway from 1967 to 1988.
It is well known that babies delivered before the 37th week of pregnancy, or three weeks before the normal due date, are at higher risk for various medical and developmental problems as infants. Less is known about their long-term health.
The researchers found that while most premature babies went on to have good health and good reproduction, as a group they experienced higher long-term risks than full-term babies.
Preemies, as these premature babies are popularly known, had higher risk of death in childhood, were less likely to reproduce as adults, had slightly lower educational attainment and, among the women, were more likely to have their own babies born prematurely just as they had been.
The overall risk for death among preemies was still low, but was significantly higher than for full-term babies.
The earlier in the pregnancy that a baby was born, the higher the risk of lasting health consequences, said Dr. Geeta Swamy of Duke University Medical Center in Durham, North Carolina, one of the researchers.
Preemies may develop health problems primarily because their organs do not have enough time to develop in the womb. Premature birth remains a prime cause of infant death in industrialized countries.
The risk of complications is greatest in the first year of life, but the researchers said parents should be aware that the risks may persist for years.
"When a family has a pre-term baby, they're pretty concerned and aware of what's going on in those first few months, first years of life. It may be that they need to keep that heightened awareness that there may be other things we should watch out for," Swamy said in a telephone interview.
MODERN TECHNOLOGIES
Dr. Alan Fleischman, medical director of the March of Dimes, which works to prevent premature births, called the study important, but said the findings do not reflect modern neonatal care because the babies were born decades ago.
"These outcomes are all from babies who didn't benefit from the most modern respirators, the most modern technology, the most modern treatments," Fleischman said.
Babies born very prematurely -- from 22 to 27 weeks of pregnancy -- had the highest risk of death throughout childhood. The risk persisted for girls until about age 6 and for boys up to about age 13, Swamy said.
Swamy said the researchers also looked at reproduction rates as adults as an indicator of overall health.
Men born at 22 to 27 weeks were 76 percent less likely to have offspring and women 67 percent less likely than their peers who were born after full-term pregnancies. For those born at 28 to 32 weeks, men were 30 percent less likely and women 19 percent less likely to have their own children.
About 5 percent of the babies in the study were premature, with boys a bit more likely than girls. The study looked at single births, excluding twins or other multiple births who already have a higher risk for being delivered early. 本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。 Lasting health consequences follow premature birth
早产对健康的长期影响
WASHINGTON (Reuters) - The health consequences of being born prematurely are broad and enduring, including a higher risk of death throughout childhood and lower reproduction rates as adults, researchers said on Tuesday.
华盛顿（路透社）-研究者们在星期二宣布，早产对健康的影响是在很多方面和很长时间的，包括在儿童时期更高的死亡率，成人以后更低的孕育成功率。
Those are the findings of a study published in the Journal of the American Medical Association that tracked almost 1.2 million people born in Norway from 1967 to 1988.
美国医学协会杂志上发表的一篇文章记述了追踪从1967年到1988年间出生在挪威的120万人后得到的发现。
It is well known that babies delivered before the 37th week of pregnancy, or three weeks before the normal due date, are at higher risk for various medical and developmental problems as infants. Less is known about their long-term health.
众所周知，怀孕37周之前出生的婴儿，或是预产期前3周出生的婴儿在婴儿期发生各种疾病及出现发育方面问题的风险更高。而人们对早产儿长大以后长期的健康方面的影响，却知之甚少。
The researchers found that while most premature babies went on to have good health and good reproduction, as a group they experienced higher long-term risks than full-term babies.
研究者发现研究者发现，尽管大多数早产儿长大以后健康状况良好，生育力正常，但整体上他们的长期（健康）风险仍高于足月儿。
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作者:admin@医学,生命科学 2010-12-25 17:11
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