Treatment and survival among children with end-stage kidney disease (ESKD) have improved during the last decades, 1,2 but an increased mortality remains, associated with young age at start of renal replacement therapy (RRT) and with treatment with dialysis. 3 Post-transplant survival has also improved during the last decades, 4 showing a 5 year patient survival rate of 99%, primarily attributable to less cardiovascular events and less infections. 2 Death rates seem to decrease with every year after transplantation, 5 and cardiovascular disease (CVD) is still the most common cause of death in children with chronic kidney