Of 450 living kidney donor candidates, 398 were rejected for donation and 52 were approved. Candidates who were rejected had a mean BMI of 28.9 kg/m2, which was significantly higher than the mean 25.9 kg/m2 for the approved group,
Of candidates approved for donation, only 11.5% were obese (BMI above 30) and 88.5% were non-obese (BMI below 30). Regardless of whether candidates were obese or not, whites were more likely to be approved for donation than non-whites (12.3% vs. 5%-6% of blacks and other race/ethnicities). Among the obese, non-whites were never approved for donation, she reported.
Dr. Stewart noted that a BMI above 35 is an absolute exclusion criterion for donation at her institution. In the study, 42.5% of prescreen denials were due to a BMI above 35.
In the other study, Deonna Moore, MSN, and colleagues at Vanderbilt University Medical Center in Nashville, Tenn., analyzed data from 967 potential donors. Of these, 212 (22%) were ineligible to donate, and 140 of them (66%) were excluded because they had a BMI of 35 or higher.