primary and secondary prevention的意思|示意

How to identify the high-risk patients with atherothrombosis in time, and what roles on earth clopidogrel plays in patients primary and secondary prevention are all the problems to be investigated.

如何及时发现动脉粥样硬化血栓形成高危患者，氯吡格雷在这些患者二级和一级预防中究竟有哪些作用都是值得研究的问题。

There are guidelines both in the US and in other areas of the world where the clinical trials for primary prevention and secondary prevention have been well analyzed and well considered.

美国和全球各地区指南都对一级预防和二级预防临床试验做了很好的分析和总结。

"Recently, the use of BMI as a risk factor marker in primary and secondary prevention of cardiovascular disease has been questioned," the authors state.

作者谈到：“最近，在心血管疾病的一级和二级预防中使用BMI作为危险因素指标已经引起了人们的质疑。”

And, secondly: Is there significant heterogeneity between the statin treatment effect in primary prevention subgroups compared with that in secondary prevention subgroups?

第二：他汀对一级预防群体的治疗效果和二级预防群体的治疗效果之间是否有显著的区别？

Conclusions Primary and secondary prevention for risk factors of breast cancer must be strengthened.

结论：需进一步加强针对乳腺癌危险因素的一、二级预防。

It evaluates and prevent the risk factors of disease resulted in by clinic environment, that is primary prevention and secondary prevention under clinic environment.

它是通过临床环境对导致疾病的危险因素进行评价和预防，即在临床环境下的一级预防和二级预防。