VOA标准英语2011--Treatments Proven Effective in Studies,

Treatments Proven Effective in Studies, Work in Real Life Too

"Evidence-based medicine" means just what it says - treatments that have been shown in scientific studies to work. But studies are one thing - do these treatments work as well in real-world clinics and hospitals? A new study in Sweden found that they do.
Researchers at Karolinska Hospital in Stockholm analyzed¹ a government registry of more than 60,000 patients with a particular type of very serious heart attack called ST-elevation myocardial infarction. These patients were treated between 1996 and 2007, a time of increasing sophistication in caring for heart attack victims.
Lead author Tomas Jernberg says studies began showing benefit from simple things like taking aspirin² to advanced, high-tech³ therapies like bypass surgery.
"During the last two decades we have seen that several new treatment strategies have been proven to lower mortality and morbidity," he says. "And in this study, we wanted to examine the effects of these efforts on the given treatment and survival in the clinical reality."
So did all these new evidence-based strategies work?
Jernberg says the answer became clear as hospitals gradually adopted proven therapies.
"And we can also see that this increased use of evidence- or guideline-recommended treatment is associated with a substantial lower mortality."
One measure of mortality is the 30-day death rate, the percentage of patients who died in the first month after having these very serious heart attacks.
"The 30-day mortality has more than halved⁴, so it's a decrease in mortality," Jernberg says.
Although use of the various evidence-based treatments increased over the 12-year span in this study, it never reached 100 percent because not all treatments are appropriate for every patient's individual situation.
There was also a lot of variation in the speed at which hospitals began using many of the newer therapies, and the authors suggest that adopting evidenced-based treatments faster could help improve patient outcomes sooner.
The study by Karolinska Hospital researcher Tomas Jernberg and colleagues is published in the journal of the American Medical Association, JAMA.

1 analyzed   

v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析

参考例句：

• The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
• The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》

2 aspirin   

n.阿司匹林

参考例句：

• The aspirin seems to quiet the headache.阿司匹林似乎使头痛减轻了。
• She went into a chemist's and bought some aspirin.她进了一家药店，买了些阿司匹林。

3 high-tech   

adj.高科技的

参考例句：

• The economy is in the upswing which makes high-tech services in more demand too.经济在蓬勃发展，这就使对高科技服务的需求量也在加大。
• The quest of a cure for disease with high-tech has never ceased. 人们希望运用高科技治疗疾病的追求从未停止过。

4 halved   

v.把…分成两半( halve的过去式和过去分词 )；把…减半；对分；平摊

参考例句：

• The shares have halved in value . 股价已经跌了一半。
• Overall operating profits halved to $24 million. 总的营业利润减少了一半，降至2，400 万元。 来自《简明英汉词典》