To investigate the etiology and epidemiology of comorbidities in CKD; To find out risk factors associated with the mortality of CKD; To find out uremic toxins which are related to the mortality and comorbidities of CKD; To focuse on the association between uremic toxins and inflammation, oxidative stress and nutritional status in CKD.
The aim of this cohort study is:~To investigate the etiology and epidemiology of comorbidities in CKD; To find out risk factors associated with the mortality of CKD; To find out uremic toxins which are related to the mortality and comorbidities of CKD; To focuse on the association between uremic toxins and inflammation, oxidative stress and nutritional status in CKD.