Table 3.
Associations between IPFP hypointense signals and baseline bone marrow lesions and increases in bone marrow lesions over 2.6 years
| Multivariablea | Multivariableb | |
|---|---|---|
| OR (95 % CI) | OR (95 % CI) | |
| Baseline bone marrow lesions | ||
| Any bone marrow lesions | 1.64 (1.32, 2.03) | 1.11 (0.87, 1.42) |
| Medial tibiofemoral | 1.77 (1.39, 2.25) | 1.24 (0.95, 1.63) |
| Lateral tibiofemoral | 1.40 (1.08, 1.80) | 1.03 (0.78, 1.36) |
| Patellar | 1.21 (0.93, 1.57) | 0.83 (0.61, 1.13) |
| Increases in bone marrow lesions | ||
| Any bone marrow lesions | 1.91 (1.39, 2.62) | 1.45 (1.02, 2.04) |
| Medial tibiofemoral | 2.11 (1.46, 3.07) | 1.59 (1.06, 2.39) |
| Lateral tibiofemoral | 1.66 (1.17, 2.35) | 1.36 (0.93, 1.97) |
| Patellar | 1.50 (1.04, 2.15) | 1.34 (0.92, 1.95) |
Dependent variables: baseline bone marrow lesions or increases in bone marrow lesions (yes v no); independent variables: IPFP hypointense signals (per grade)
IPFP infrapatellar fat pat
aAdjusted for age, sex, BMI, and radiographic osteoarthritis
bFurther adjustment for cartilage defects