standardized mortality ratio

例句：

1. 1. Thehospital's standardized mortality ratio islower than the national average.
   这家医院的标准化死亡率比全国平均水平要低。
2. 2. The studyfound that the standardized mortality ratio forheart disease was higher in urban areas.
   研究发现，心脏病的标准化死亡率在城市地区更高。
3. 3. The government has been working to improvethe standardized mortality ratio across all regions.
   政府一直在努力提高所有地区的标准化死亡率比率。