Correlation between CLI-SJC and ultrasound-SJC.
| First Half | Second Half | |||
|---|---|---|---|---|
| Grayscale | Correlation Coefficient | p | Correlation Coefficient | p |
| GS ≥ 1 | 0.426 | 0.003 | 0.548 | < 0.0001 |
| GS ≥ 2 | 0.675 | < 0.0001 | 0.677 | < 0.0001 |
| GS ≥ 3 | 0.521 | 0.0002 | 0.602 | < 0.0001 |
CLI-SJC: swollen joint counts assessed by physical examination. Ultrasound-SJC: swollen joint counts assessed by ultrasound examination.