Table 3.
Association of patellofemoral grind with synovitis worsening over 24 months.
| Model 1a | Model 2b | Model 3c | ||||
|---|---|---|---|---|---|---|
| OR(95% CI) | p | OR(95% CI) | p | OR(95% CI) | p | |
| Baseline patellofemoral grind | ||||||
| All | 1.477 (1.032–2.112) | 0.033 | 1.663 (1.126–2.455) | 0.011 | 1.670 (1.130–2.466) | 0.010 |
| Men | 1.329 (0.673–2.623) | 0.413 | 1.267 (0.613–2.616) | 0.523 | 1.270 (0.615–2.625) | 0.518 |
| Women | 2.203 (1.313–3.116) | 0.001 | 2.438 (1.507–3.943) | <0.001 | 2.470 (1.526–3.999) | <0.001 |
| Frequent patellofemoral grind | ||||||
| All | 1.520 (1.006–2.297) | 0.047 | 1.709 (1.091–2.678) | 0.019 | 1.710 (1.091–2.679) | 0.019 |
| Men | 0.782 (0.345–1.772) | 0.556 | 0.878 (0.368–2.094) | 0.770 | 0.874 (0.366–2.085) | 0.761 |
| Women | 2.009 (1.230–3.280) | 0.005 | 2.295 (1.336–3.945) | 0.003 | 2.306 (1.342–3.963) | 0.002 |
a
Model 1: unadjusted.
b
Model 2: adjusted for sex, age, race, body mass index, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), injury, surgery, and Kellgren-Lawrence (KL) grade at baseline.
c
Model 3: Model 2 + baseline quadriceps strength. The bold p-value indicates that the result is statistically significant.