Table 2.
Association of patellofemoral grind with synovitis 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 | 1.828 (1.356–2.464) | <0.001 | 1.421 (1.033–1.954) | 0.031 | 1.443 (1.049–1.984) | 0.024 |
| Men | 1.098 (0.662–1.821) | 0.717 | 0.828 (0.484–1.419) | 0.493 | 0.835 (0.488–1.430) | 0.512 |
| Women | 2.539 (1.748–3.690) | <0.001 | 2.032 (1.363–3.031) | <0.001 | 2.081 (1.394–3.105) | <0.001 |
| Frequent patellofemoral grind | ||||||
| All | 1.843 (1.302–2.608) | 0.001 | 1.498 (1.036–2.166) | 0.032 | 1.500 (1.037–2.168) | 0.031 |
| Men | 1.323 (0.720–2.430) | 0.367 | 1.058 (0.556–2.009) | 0.865 | 1.046 (0.550–1.989) | 0.890 |
| Women | 2.225 (1.454–3.403) | <0.001 | 1.742 (1.108–2.739) | 0.016 | 1.758 (1.118–2.764) | 0.015 |
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.