Table 4.

Sensitivity of MSK-US hands versus hands and feet in detecting active synovitis in RA patients stratified based on their DAS-28 scores

DAS-28	Patients with PD ≥ 1 in their hands (irrespective of having it or not in their feet)	Patients with PD ≥ 1 in their feet (irrespective of having it or not in their hands)	Patients with PD ≥ 1 in both hands and feet	Sensitivity of MSK-US hands vs. hands and feet (%)
< 2.6	2	4	5	40
2.6–3.2	4	3	5	80
3.2–5.1	9	9	13	69.2
> 5.1	3	2	3	100
Total patients	18	18	26

DAS-28, disease activity score assessing 28 joints; MSK-US, musculoskeletal ultrasound; PD, power Doppler