| Obese subgroup |  | Non-obese subgroup |  |  |
---|---|---|---|---|---|
 | Regression coefficient (95% CI)* | P value | Regression coefficient (95% CI)* | P value | P value for difference†|
WOMAC pain score | |||||
LCPA | -3.13 (-5.60, -0.67) | 0.01 | 0.56 (-0.63, 1.75) | 0.36 | 0.01 |
SA | 0.42 (-1.46, 2.29) | 0.66 | -0.1 (-0.79, 0.77) | 0.98 | 0.68 |
I-S ratio | 87.80 (-30.86, 206.46) | 0.15 | -37.58 (-101.45, 26.29) | 0.25 | 0.06 |
Medial patella cartilage volume | |||||
LCPA | 86.36 (26.15, 146.58) | 0.01 | 47.81 (-22.37, 117.99) | 0.18 | 0.41 |
SA | 12.01 (-35.76, 59.77) | 0.62 | -55.61 (-104.79, -6.43) | 0.03 | 0.05 |
I-S ratio | -3093.84 (-6260.66, 72.98) | 0.06 | -2943.85 (-6497.61, 603.91) | 0.10 | 0.95 |
Lateral patella cartilage volume | |||||
LCPA | 49.36 (-29.20, 127.93) | 0.22 | 48.77 (-52.06, 149.60) | 0.34 | 0.99 |
SA | 53.63 (-6.93, 114.19) | 0.08 | 31.12 (-44.23, 106.48) | 0.41 | 0.64 |
I-S ratio | -3594.17 (-75463.31, 357.98) | 0.07 | -2433.12 (-7752.83, 2886.59) | 0.37 | 0.73 |