Table 4.
Multivariable Logistic Regression Analysis of Factors Associated With Having a Knee Injury Among NBA Players
| Odds Ratio (95% Confidence Interval) | Standard Error | P Value∗ | Pseudo R2 | |
|---|---|---|---|---|
| Variables | 0.27 | |||
| 0.27 | 1.0 (0.92-1.1) | 0.049 | .780 | |
| Weight, kg | 1.0 (0.98-1.0) | 0.011 | .559 | |
| Years of experience | 1.0 (0.92-1.1) | 0.050 | .846 | |
| Follow-up duration, y | 1.6 (1.4-1.9) | 0.13 | <.001 | |
| Number of games played (total) | 0.99 (0.98-1.0) | 0.0058 | .372 | |
| Minutes per game (total) | 1.1 (1.0-1.2) | 0.042 | .002 | |
| Performance metrics | ||||
| Usage rate | 1.1 (1.0-1.2) | 0.039 | .004 | |
| Player efficiency rating | 0.94 (0.89-1.0) | 0.028 | .041 | |
| True shooting percentage | 1.1 (1.0-1.1) | 0.017 | <.001 | |
| Points per game | 0.91 (0.80-1.0) | 0.058 | .135 | |
| Block percentage | 1.8 (0.87-3.6) | 0.64 | .118 | |
| Total rebound percentage | 0.95 (0.81-1.1) | 0.078 | .537 | |
| Games missed due to injury | 1.1 (1.0-1.1) | 0.013 | <.001 | |
| Other lower-extremity injury† | ||||
| Foot | 1.5 (0.95-2.4) | 0.35 | .078 | |
| Ankle | 0.85 (0.56-1.3) | 0.18 | .425 | |
| Calf or shin | 1.1 (0.74-1.8) | 0.25 | .537 | |
| Hip, hamstring, or quadriceps | 1.1 (0.70-1.6) | 0.23 | .777 |
NBA, National Basketball Association.
∗
Values in bold indicate statistical significance, P < .05. Note: One player with a gunshot wound to the knee was excluded from analysis.
†
Not having a specific foot, ankle, calf/shin, or hip/hamstring/quadriceps injury was used as a reference standard.