| Feature | Sensitivity | Specificity | Positive LR | Negative LR |
|---|---|---|---|---|
| FI per se | 0.44/0.42 | 0.73/0.78 | 1.62/1.91 | 0.77/0.74 |
| FI with distinct border | 0.21/0.21 | 0.97/0.90 | 8.29/2.13 | 0.81/0.88 |
| Homogenous FI | 0.20/0.26 | 0.97/0.93 | 6.24/3.78 | 0.83/0.80 |
| Subchondral FI | 0.36/0.35 | 0.85/0.83 | 2.36/2.04 | 0.75/0.78 |
| FI with any 2 features | 0.24/0.30 | 0.97/0.92 | 9.26/3.58 | 0.78/0.77 |
| FI+BME | 0.19/0.18 | 0.99/0.92 | 14.63/2.13 | 0.82/0.90 |
| FI+ER | 0.21/0.24 | 0.99/0.93 | 33.15/3.55 | 0.79/0.81 |
LR: Likelihood ratio. FI: Fat infiltration. BME: Bone marrow edema. ER: Erosion.