Population aging：main cause of increased malignant tumor in

时间：2007-03-07 01:28:50

（单词翻译:单击）

Chinanews, Beijing, Mar1. 6 – According to a report of the People's Daily, a new medical conclusion has been put forward from the research on the epidemic2 tendency and prevention of malignant3 tumor4, that population aging is a main factor leading to the increase of malignant tumor incidence. This project is led by Hao Xishan, M.D., President, Tianjin Medical University and Academician of Chinese Academy of Engineering. Recently, this project has won the 2nd Prize of the National Sci-Tech Progress Award.　　

 

According to the analysis on the mortality rate of malignant tumor in the 4,000,000 city population (1981—2000), professors of this project find the accumulative incidence of malignant tumor has increased by 45.35% within recent 20 years, during which period the population enjoys an average of 7 years longer life than people 20 years before, and the old people above 65 years old now take up 12.62% of the total population, as against the previous 5.75%.

 

Research shows that the variation of people’s age composition is a decisive factor among all elements resulting in malignant tumor. To be more specific, malignant tumor incidence rate has increased by 11.44 out of 100,000 persons when people become one year older.

 
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1 mar f7Kzq     
vt.破坏，毁坏，弄糟
参考例句：
  • It was not the custom for elderly people to mar the picnics with their presence.大人们照例不参加这样的野餐以免扫兴。
  • Such a marriage might mar your career.这样的婚姻说不定会毁了你的一生。
2 epidemic 5iTzz     
n.流行病；盛行；adj.流行性的，流传极广的
参考例句：
  • That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。
  • The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。
3 malignant Z89zY     
adj.恶性的，致命的；恶意的，恶毒的
参考例句：
  • Alexander got a malignant slander.亚历山大受到恶意的诽谤。
  • He started to his feet with a malignant glance at Winston.他爬了起来，不高兴地看了温斯顿一眼。
4 tumor fKxzm     
n.（肿）瘤，肿块(英)tumour
参考例句：
  • He was died of a malignant tumor.他死于恶性肿瘤。
  • The surgeons irradiated the tumor.外科医生用X射线照射那个肿瘤。

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