研究:非裔美国人患中风风险最高
文章来源:未知 文章作者:meng 发布时间:2010-02-28 01:42 字体: [ ]  进入论坛
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Americans age 65 and younger are more than twice as likely to have a stroke compared with Caucasians(白种人) in any region, and people who have a stroke are more likely to die in the South than elsewhere, according to researchers at the University of Alabama at Birmingham (UAB) School of Public Health. The findings are from UAB's Reasons for Geographic1 and Racial Differences in Stroke (REGARDS) study, one of the largest ongoing2 health studies that includes more than 30,200 U.S. participants.

This new report is among the first to show major regional and racial disparities(不同,不等) in stroke rates. It also underscores the need for targeted stroke-prevention and care strategies in those at greatest risk, said Virginia Howard, Ph.D., a UAB associate professor of epidemiology(流行病学,传染病学) and a REGARDS co-principal investigator3.

The study was presented Feb. 26 at the International Stroke Conference in San Antonio.

"This is the first study to take national data and really lay it out on the table," Howard said. "We found in the 45-54 age group that blacks have a 2.5-fold greater stroke rate compared to whites, which is startling."

The study also shows a stroke rate greater than 12 percent higher in eight Southeast states known as the Stroke Belt — Alabama, Arkansas, Georgia, Louisiana, Mississippi, North and South Carolina and Tennessee — with the highest stroke rate in the coastal4 states of Georgia, North and South Carolina.

"These are stroke-incidence data. It doesn't tell us how to fix the problem, but it gives us our clearest stroke picture to date in this country," Howard said.

In the new study, REGARDS researchers reviewed data on more than 26,500 participants with no history of stroke. They kept in periodic(周期的,定期的) telephone contact with the participants for nearly five years and documented 299 strokes to which they applied5 a rate formula. In the 45-54 age group, the stroke rate is 192 percent for African-Americans compared with 74 percent for whites.

"That disparity in the incidence rate evens out(使平坦,变正常) and changes as you monitor stroke in older Americans. In fact the racial differences reverse, so by the time they reach about age 80 and older, whites have a higher stroke rate compared with blacks," Howard said. It is not clear why the differences change with age, but it may have to do with different types of strokes occurring in different age groups.

The bottom line is that certain subgroups are at greater risk and need to pay closer attention to their stroke-risk factors, said George Howard, Dr.PH., a UAB professor of biostatistics(生物统计学) and a REGARDS co-principal investigator. Stroke-risk factors include family history, high blood pressure and high cholesterol6, diabetes7, obesity8, tobacco use and other variables.



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1 geographic tgsxb     
adj.地理学的,地理的
参考例句:
  • The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
  • Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法
2 ongoing 6RvzT     
adj.进行中的,前进的
参考例句:
  • The problem is ongoing.这个问题尚未解决。
  • The issues raised in the report relate directly to Age Concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。
3 investigator zRQzo     
n.研究者,调查者,审查者
参考例句:
  • He was a special investigator for the FBI.他是联邦调查局的特别调查员。
  • The investigator was able to deduce the crime and find the criminal.调查者能够推出犯罪过程并锁定罪犯。
4 coastal WWiyh     
adj.海岸的,沿海的,沿岸的
参考例句:
  • The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
  • This country will fortify the coastal areas.该国将加强沿海地区的防御。
5 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
6 cholesterol qrzzV     
n.(U)胆固醇
参考例句:
  • There is cholesterol in the cell of body.人体细胞里有胆固醇。
  • They are determining the serum-protein and cholesterol levels.他们正在测定血清蛋白和胆固醇的浓度。
7 diabetes uPnzu     
n.糖尿病
参考例句:
  • In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者,医生告诫他们不要吃糖。
  • Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。
8 obesity Dv1ya     
n.肥胖,肥大
参考例句:
  • One effect of overeating may be obesity.吃得过多能导致肥胖。
  • Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。
TAG标签: health Americans data stroke
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