年龄调整 meaning in Chinese

age adjustment

The data were adjusted for age due to the fact that age is potentially significantly correlated with body mass index
由于体重指数与年龄显著相关，首先用年龄调整体重指数。
The age - adjusted death rate for heart disease dropped from 217 deaths per 100 , 000 in 2004 to about 210 in 2005 , and actual deaths dropped from about 652 , 500 to about 649 , 000
心脏疾病的年龄调整死亡率从2004年的十万分之217降到了2005年的210 ，实际死亡人数从大约652500降到大约649000 。