题目内容
Most Adults in U. S. Have Low Risk of Heart Disease More than 80 percent of US adults have a less than 10 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 distributed 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. By contrast, 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 risk, 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. Only 3 percent of US adults have a more than 10 percent 10-year risk of heart disease.
查看答案
搜索结果不匹配？点我反馈
更多问题
AIDS AIDS is Acquired Immune Deficiency Syndrome. The human immunodeficiency virus (人类免疫缺损病毒)called HIV is believed to cause AIDS. There is no cure. People who get the disease will die. AIDS itself does not kill. However, it attacks and destroys the body’’s defense system that fights against infection. When this happens, a person has little ability to fight off many other diseases including pneumonia(肺炎), cancer and tuberculosis (结核病). A new study says the number of women in the United States with AIDS has increased sharply. The study says AIDS is increasing faster among women than among men. Eighteen percent of AIDS patients are women. This is almost 3 times the rate 10 years ago. Most women get the AIDS virus from having sexual relations with men. Pregnant women with the disease can pass it to their babies. The effect of AIDS in America is greatest in large cities. AIDS is the leading cause of death among all people in 79 cities. It is the leading cause of death among women in 15 cities. These include New York City and Miami, Florida. Doctors in the United States first noted AIDS 14 years ago in homosexual (同性恋的)men in New York and California. In the United States AIDS spread first among homosexual men. Then it appeared in people who shared needles to put illegal drugs into their blood. It also appeared in people who had received infected blood products at hospitals. The AIDS virus is spread through the exchange of infected blood or body fluids released during sexual activity. It is also spread by having sexual relations with someone who has the virus. And it is spread by sharing drug needles that have infected blood on them. AIDS has affected several famous American athletes. Two years ago, former tennis player Arthur Ashe died of the disease. At about the same time, former basketball player Magic Johnson announced that he has the AIDS virus. The most recent athlete to be affected is Gregory Louganis. Louganis won a number of gold medals in Olympic diving competition. He announced on television that he has AIDS. President Clinton met with Louganis and praised him for discussing his sickness. Mr. Clinton said it is important to educate the public. Activists have succeeded in educating Americans about AIDS and the people who have it. They also have been urging the federal government to increase efforts to find a cure for AIDS. Scientists first identified the virus that is believed to cause AIDS in 1983. Many of them then thought they could produce an anti-AIDS vaccine(痘苗). Such a medicine could be given to people to protect against the disease. However, scientists at American government agencies, universities and drug companies have failed to produce an anti-AIDS vaccine. But they are continuing effort to find better treatments for a cure. Why are some museums closed in a yearly event called Day without Art
The stories of Sarah Orne Jewett are considered by many to be more (authentically) regional than those of Bret Harte.
环状沉淀试验反应时间为
Passage ThreeQuestions 33 to 35 are based on the passage you have just heard.
微信支付 
支付宝支付