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| Characteristics | Useful (n=74) | Not useful (n=20) | P value | |||
| Age (years), median (interquartile range) | 58 (50-64) | 63 (53-72) | .03 | |||
| Years since donation, median (interquartile range) | 10 (8-12) | 12 (9-17) | .10 | |||
| Gender, n (%) | .43 | |||||
|
|
Male | 26 (35) | 8 (40) | —a | ||
|
|
Female | 48 (65) | 12 (60) | — | ||
| Race, n (%) | .73 | |||||
| White | 68 (92) | 20 (100) | — | |||
| Asian or Pacific Islander | 2 (3) | 0 (0) | — | |||
|
|
Black | 4 (5) | 0 (0) | — | ||
aNot applicable.
