Table 3.
Logistic Regression Results for Power Variables
| Variable Characteristics |
Model Characteristics |
|||||
| B |
P Value |
Odds Ratio (95% Confidence Interval) |
Accuracy, % Correct |
Explained Variance, R2 |
P Value |
|
| Block 0: no variables | 63.6 | |||||
| Block 1: covariates (enter) | 67.5 | .200 | .016 | |||
| Sexa | –0.426 | .419 | 0.65 (0.23, 1.83) | |||
| Graft typea | 0.844 | .168 | 2.33 (0.70, 7.72) | |||
| Age | –0.186 | .034 | 0.83 (0.70, 0.99) | |||
| Time from surgery | –0.231 | .252 | 0.79 (0.53, 1.18) | |||
| Block 2: covariates (enter) + predictors (forward: LR) | 68.8 | .268 | .005 | |||
| Sexa | –0.371 | .498 | 0.69 (0.24, 2.01) | |||
| Graft typea | 0.166 | .811 | 1.18 (0.30, 4.41) | |||
| Age | –0.168 | .074 | 0.85 (0.70, 1.02) | |||
| Time from surgery | –0.227 | .278 | 0.80 (0.53, 1.20) | |||
| Quadriceps power limb symmetry index | 3.612 | .044 | 37.04 (1.10, 1253.23) | |||
a
Female and patellar-tendon graft used as reference categories. Positive B values indicate that male or hamstrings-tendon graft (or both) displayed higher odds of meeting normal IKDC (International Knee Documentation Committee Subjective Knee Evaluation Form) values.