Differences in mortality的用法和樣例：
例句
- Differences among those with total pancreatectomy were not significant because of the small sample size.
由於樣本量過小，全胰腺切除術死亡率差異不具有統計學意義。 - The difference in age and morbidity does not account for the disparity in mortality between cognitive impaired and non-impaired subjects.
控制了慢性病患病率和年齡的差別後，認知功能水平的死亡率差異仍有顯著意義。
