Table 3.
Regression coefficients for FTA and the proportion of variance in each model for cMFTC and cLFTC for BMI tertiles*
| Model R2, % | β (95% CI) | P | |
|---|---|---|---|
| cMFTC | |||
| Normal | 22.2 | 14.3 (14.4, 24.3) | 0.005 |
| Overweight | 19.8 | 13.3 (6.2, 20.5) | < 0.001 |
| Obese | 17.5 | 14.4 (7.0, 22.0) | < 0.001 |
| cLFTC | |||
| Normal | 19.8 | −15.4 (−25.0, −5.8) | 0.002 |
| Overweight | 11.7 | −16.1 (−22.3, −9.8) | <0.001 |
| Obese | 13.9 | −18.9 (−24.9, −12.9) | < 0.001 |
*
Positive beta coefficients indicate cartilage thinning per unit increase toward varus. Negative beta coefficients indicate cartilage thinning per unit increase toward valgus. FTA = femorotibial angle; cMFTC = central weight-bearing medial femorotibial compartment; cLFTC = central weight-bearing lateral femorotibial compartment; BMI = body mass index; 95% CI = 95% confidence interval.