Table 2.
Characteristics of the OCA and OAT Cohorts a
| Variable | OCA (n = 1631) |
OAT (n = 967) |
|---|---|---|
| Surgery type | ||
| Open | 1067 (65.4) | 398 (41.2) |
| Arthroscopic | 564 (34.6) | 569 (58.8) |
| Sex | ||
| Male | 789 (48.4) | 474 (49.0) |
| Female | 842 (51.6) | 493 (51.0) |
| Age, y | 34.5 ± 12.1 | 32.1 ± 12.9 |
| Age group | ||
| 10-19 y | 257 (15.8) | 240 (24.8) |
| 20-29 y | 324 (19.9) | 204 (21.1) |
| 30-39 y | 434 (26.6) | 205 (21.2) |
| 40-49 y | 420 (25.8) | 215 (22.2) |
| 50-59 y | 196 (12.0) | 103 (10.7) |
a Data are presented as n (%) or mean ± SD. Boldface values indicate statistically significant difference between groups (P < .05). OAT, osteochondral autograft transfer; OCA, osteochondral allograft transplant.