Table 3

 Correlation between clinical, ultrasonographic, and laboratory variables

HAQVASPVASOAESRCRP
*p<0.01; †p<0.05.
HAQ, Health Assessment Questionnaire; VASP, visual analogue scale for pain; VASOA, visual analogue scale for patient’s overall assessment; ESR, erythrocyte sedimentation rate; CRP, C reactive protein; TJC, tender joint count; SJC, swollen joint count; SJI, swollen joint index; USJCE, ultrasonographic joint count for effusion; USJCS, ultrasonographic joint count for synovitis; USJCPD, ultrasonographic joint count for power Doppler signal; USJIE, ultrasonographic joint index for effusion; USJIS, ultrasonographic joint index for synovitis; USJIPD, ultrasonographic joint index for power Doppler signal.
TJC0.40*0.46*0.36*0.120.08
SJC0.44*0.41*0.33*0.41*0.51*
SJI0.42*0.39*0.32*0.45*0.57*
TJC280.42*0.48*0.39*0.100.08
SJC280.38*0.35†0.29†0.39*0.51*
USJCE0.130.23†0.31*0.50*0.62*
USJCS0.150.26†0.32*0.50*0.63*
USJCPD0.120.180.23†0.45*0.62*
USJCE280.160.25†0.32*0.49*0.57*
USJCS280.170.30*0.36*0.48*0.60*
USJCPD280.160.25†0.29*0.50*0.63*
USJIE0.120.23†0.31*0.51*0.64*
USJIS0.150.27*0.32*0.51*0.64*
USJIPD0.110.200.240.44*0.63*