Between 2005 and 2015, the unadjusted rate of living kidney donation in the United States was 30.1 and 19.3 per million population in women and men, respectively.

After adjusting for differences in age, race, the incidence of kidney failure, and geographic factors, the incidence of donation was 44% higher in women.

Over time, the incidence of donation was stable in women but declined in men. The decline was most marked in men from lower income groups.