Table 4.

Multivariate Logistic model for PDUS (accounts for correlation among different joints in the same patient)

	Odds Ratio	95% CI Lower	95% CI Upper	P-value
Age	1.01	0.98	1.05	0.48
Sex (Female)	2.42	0.54	10.87	0.25
BMI (Ordinal)	0.52	0.30	0.93	0.03
Swollen (Yes)	2.50	1.40	4.48	0.01

PDUS power Doppler ultrasound