Table 1.
Characteristics of living donors in the United States, 1987–2014
| Characteristic | No ESRD | ESRD |
|---|---|---|
| N | 133,493 | 331 |
| Median (IQR) yr of donation | 2004 (1999–2010) | 1995 (1991–2000) |
| Median (IQR) age at donation | 40 (31–48) | 38 (30–48) |
| Median (IQR) BMI at donation, kg/m2a | 26.6 (23.7–29.7) | 28.9 (24.4–31.4) |
| Men, % | 40.7 | 60.4 |
| Black, % | 12.5 | 34.4 |
| First-degree biologically related to recipient, % | 59.4 | 85.6 |
| Sibling of recipient | 29.9 | 46.8 |
| Child of recipient | 16.0 | 18.2 |
| Parent of recipient | 13.5 | 20.9 |
a
BMI at donation and relationship to recipient were missing for 31.0% of donors and 0.7% of donors, respectively. Missingness of BMI was primarily due to incomplete reporting before 1999. In regression analyses, multiple imputation was used to account for missing data.