Relative risk of mortality by dialysis dose

The relative risk of mortality by delivered dose of dialysis as measured by quintiles of Kt/V (top panel) or URR (bottom panel, in percent) among a random sample of 2311 patients on dialysis for more than one year at the end of 1990. Increasing the dialysis dose improved survival with apparent maximum benefit at a Kt/V of 1.3 and URR of 70.