Most Adults in U.S.Have Low Risk of Heart Disease[卫生类职称英语教材]
More than 80 percent of US adults have a less than 10一percent risk of developing heart disease in the next 10 years，according to a report in the Journal of the American College of Cardiology.Just 3 percent have a risk that exceeds 20 percent.
“I hope that these numbers will give physicians，researchers，health policy analysts，and others a better idea of how coronary heart disease is distributed1 in the US population，”lead author Dr.Earl S.Ford，from the Centers for Disease Control and Prevention in Atlanta，said in a statement.
The findings are based on analysis of data from 13，769 subjects，between 20 and 79 years of age，who participated in the Third National Health and Nutrition Examination Survey from 1988 to 1994.
Overall，82 percent of adults had a risk of less than 10 percent，15 percent had a risk that fell between 10 to 20 percent，and 3 percent had a risk above 20 percent.
The proportion of subjects in the highest risk group increased with advancing age，and men were more likely than women to be in this group.2By contrast3，race or ethnicity had little effect on risk distributions.
Although the report suggests that most adults have a low 10-year risk of heart disease，a large proportion have a high or immediate risk4，Dr.Daniel S.Berman，from Cedars-Sinai Medical Center in Los Angeles，and Dr.Nathan D.Wong，from the University of California at Irvine.note in a related editorial.
Aggressive treatment measures and public health strategies are needed to shift the overall population risk downward，they add.
词汇：
cardiology n.心脏(病)学 coronary adj.心脏冠状动脉的
lead adj.带头的 nutrition n.营养的供给
ethnicity n.人种分类，种族划分
注释：
1.Centers for Disease Control and Prevention：疾病防控中心
2.The proportion of subjects in the highest risk group increased with advancing age，and men were more likely than women to be in this group.实验对象年龄越大，在最高风险组中所占的比例也越大；男人进入该组的可能性亦大于女人。
3.by contrast：对比之下
4.Although the report suggests that most adults have a low 10-year risk of heart disease，a large proportion have a high or immediate risk…：尽管报告提示大多数成年人十年内患心 脏病的风险较低，但是在有风险者中，很大一部分所面临的风险却是很高的或是刻不 容缓的……
练习：
1.The 10-year risk of heart disease is low for most US adults.
A Right B Wrong C Not mentioned
2.Only 3 percent of US adults have a more than 10 percent 10-year risk of heart disease.
A Right B Wrong C Not mentioned
3.More than 100 thousand people participated in the survey.
A Right B Wrong C Not mentioned
4.There was a greater p
