comaparative mortality index

例句：

1. 1. The researchers used a comparativemortality index to study the effects of differentdiets on health.
   研究人员使用一个比较死亡率指数来研究不同饮食对健康的影响。
2. 2.The government has released a new comparative mortalityindex to help people make informed decisions abouttheir health care.
   政府发布了一个新的比较死亡率指数，以帮助人们做出关于他们的医疗保健的知情决定。
3. 3. The study found that thecomparative mortality index was significantly higher in areaswith high levels of pollution.
   研究发现，在污染水平较高的地区，比较死亡率指数显著更高。