Table 1.
Demographic characteristics, radiographic osteoarthritis (OA) status, and CEMRI-based synovitis grades of the study subjects.
| Total No. Subjects | N = 404 |
|---|---|
| Age, yrs, mean ± SD | 58.8 ± 7.0 |
| BMI, kg/m2, mean ± SD | 29.6 ± 4.9 |
| Sex, women, n (%) | 184 (45.5) |
| Kellgren-Lawrence grade | |
| 0 or 1 | 318 (78.7%) |
| 2 | 41 |
| 3 | 37 |
| 4 | 8 |
| ≥ 2 | 86 (11.3%) |
| Max synovitis score on CEMRI, n (%) | |
| 0 | 106 (26.2) |
| 1 | 135 (33.4) |
| 2 | 163 (40.4) |
| Presence of cartilage damage (WORMS grade ≥ 2) | n = 342 |
| < 4 subregions | 117 |
| ≥ 4 subregions | 225 |
| < 6 subregions | 208 |
| ≥ 6 subregions | 134 |
| Max meniscal grade in any subregion | n = 343 |
| 0 | 208 |
| 1 | 20 |
| 2 | 54 |
| ≥ 3 | 61 |
CEMRI: contrast-enhanced magnetic resonance imaging; BMI: body mass index; WORMS: Whole Organ Magnetic Resonance Imaging Score.