First, we did not record important risk factors for survival in patients undergoing dialysis who return to dialysis therapy after graft failure such as inflammatory markers (e.g. PCR levels), serum albumin, residual renal function at dialysis entry and panel reactive antibodies [1,8,11,38], or some community risk factors, such as obesity or smoking, which have been independently associated with mortality in the general population and waitlist patients [39]. This evidence concerns the gene ALB and obesity due to melanocortin 4 receptor deficiency.