The DALYs of these four main chronic diseases were 135 38 person years, and the DALY rate in the observed population was 13 42%. The DALY rate was estimated to 6 41% in the total population.

• 观察人群的DALY损失为 13 5 3 8人年 ,DALY损失率为13 42%25,推算全人群的DALY损失为 6 41%25。