Table 3.
Age and Activity Level of Subgroups
| 2002–2003 | 2007–2008 | |
|---|---|---|
| Age | Mean (SD) | Mean (SD) |
| Autograft BTB | 22.8 (8.9) | 23.5 (9.4) |
| Autograft Hamstring | 27.9 (11.7)† | 25.5 (10.7)† |
| Allograft | 31.3 (12.0)* | 39.8 (10.9)* |
|
| ||
| ACL Graft Retear | ||
|
| ||
| No retear | 26.7 (11.1) | 26.8 (11.5) |
| Retear | 18.2 (5.4) | 18.5 (3.7) |
|
| ||
| Marx Activity Level | Mean (SD) | Mean (SD) |
|
| ||
| Autograft BTB | 12.2 (4.9) | 12.5 (4.9) |
| Autograft Hamstring | 10.9 (5.2) | 11.6 (5.0) |
| Allograft | 10.3 (5.3)# | 8.1 (5.6)# |
|
| ||
| ACL Graft Retear | ||
|
| ||
| No retear | 11.2 (5.2) | 11.4 (5.2) |
| Retear | 14.3 (3.7) | 14.4 (4.0) |
SD = standard deviation; BTB = bone-patellar tendon-bone
†
Age was significantly different between the 2002–03 and 2007–08 groups (p = 0.01)
*
Age significantly increased over time (p < .001)
#
Marx significantly decreased over time (p = 0.001)