Objective To explore the survival time and risk factors of autogenous arteriovenous fistula (AVF)for maintenance hemodialysis.Methods A cohort study regarding 126 cases who underwent AVF creation in the Second Hospital of Tianjin Medical University for the first time from 2010 to 2011 was conducted.The clinical data of them from the creation of AVF to five years later were obtained from the hemodialysis patients database of the hospital.According to the functional patency of AVF,they were divided into nonfu...