Historical data (i.e the. "before" period) will include incident dialysis cases during the calendar years 2013, 2014 and 2015 before the start of the prospective phase (i.e. "after" period, which is represented by the current declaration); since a preliminary study demonstrated that the data are comparable from 2011 to 2013, we will use the average of data thus obtained. Historical data will be retrieved from the REIN (The French Renal Epidemiology and Information Network) registry data and will be validated by investigators at each center.