TABLE 4.
Regression Analyses of the Effect of Activity at Time of Injury and Multiligament Injury on KOOS Scores at 2-Year Follow-upa
| Injury During Sportsb | Multiligament Injuryc | |||||||
|---|---|---|---|---|---|---|---|---|
| KOOS Subscale | n | β | 95% CI | P Value | n | β | 95% CI | P Value |
| Pain | ||||||||
| Unadjusted | 247 | 13.0 | 7.7 to 18.3 | <.001 | 252 | –2.1 | –7.9 to 3.8 | .484 |
| Adjusted | 234 | 13.4 | 8.0 to 18.9 | <.001 | 234 | 1.8 | –4.5 to 8.0 | .576 |
| Symptoms | ||||||||
| Unadjusted | 246 | 6.4 | 1.3 to 11.4 | .013 | 251 | –0.1 | –5.4 to 5.3 | .978 |
| Adjusted | 233 | 7.0 | 1.9 to 12.2 | .008 | 233 | 2.9 | –3.0 to 8.8 | .331 |
| ADL | ||||||||
| Unadjusted | 247 | 11.8 | 6.3 to 17.3 | <.001 | 252 | –4.9 | –10.8 to 1.0 | .105 |
| Adjusted | 234 | 12.6 | 7.1 to 18.1 | <.001 | 234 | 0.8 | –5.4 to 7.1 | .797 |
| Sport/Recreation | ||||||||
| Unadjusted | 246 | 14.4 | 7.4 to 21.5 | <.001 | 251 | –7.9 | –15.5 to –0.3 | .042 |
| Adjusted | 233 | 15.3 | 8.0 to 22.5 | <.001 | 233 | –3.7 | –12.1 to 4.7 | .385 |
| QoL | ||||||||
| Unadjusted | 247 | 13.3 | 7.1 to 19.5 | <.001 | 252 | –5.2 | –11.9 to 1.6 | .132 |
| Adjusted | 234 | 13.5 | 7.1 to 20.0 | <.001 | 234 | –2.6 | –10.0 to 4.8 | .495 |
aAdjusted for sex, age, time from injury to surgery, concomitant meniscal lesions, concomitant cartilage lesions, concomitant neural injury/arterial injury/fracture/tendon rupture, and type of PCL graft. ADL, Activities of Daily Living; KOOS, Knee injury and Osteoarthritis Outcome Score; PCL, posterior cruciate ligament; QoL, Quality of Life.
bOther activity than sports at time of injury used as reference.
cIsolated PCL injury used as reference.