As marijuana (MJ) legalization is increasing, kidney transplant programs must develop listing criteria for marijuana users. However, no data exist on the effect of MJ on kidney allograft outcomes, and there is no consensus on whether MJ use should be a contraindication to transplantation. We retrospectively reviewed 1225 kidney recipients from 2008 to 2013. Marijuana use was defined by positive urine toxicology screen and/or self-reported recent use. The primary outcome was death at 1 year or graft failure (defined as GFR<20 mL/min/1.73 m2). The secondary outcome was graft function at 1 year. Using logistic regression analyses, we compared these outcomes between MJ users and...
