Table 3.

Correlation between PTI, synovitis, and MASEI items.

	PTI PD		Synovitis PD		PTI Greyscale		Synovitis Greyscale
	Rho^†	p	Rho^†	p	Rho^†	p	Rho^†	p
MASEI	+0.227	0.255	+0.115	0.567	+0.280	0.157	+0.137	0.497
Structure MASEI	+0.044	0.826	+0.052	0.798	+0.138	0.493	−0.032	0.873
Thickness MASEI	+0.095	0.637	+0.247	0.213	+0.179	0.371	+0.202	0.311
Erosion MASEI	+0.147	0.465	+0.094	0.640	+0.220	0.271	−0.045	0.823
Calcification MASEI	−0.079	0.694	+0.204	0.307	−0.006	0.978	+0.176	0.381
Bursa MASEI	−0.467	0.014	−0.405	0.036	−0.540	0.040	−0.042	0.835
PD MASEI	+0.357	0.067	−0.083	0.681	+0.329	0.094	−0.041	0.841
PD OMERACT	+0.441	0.021	+0.045	0.825	+0.423	0.028	−0.032	0.874

↵† Spearman rho value. P values in bold face (< 0.05) considered statistically significant. PTI: peritenon extensor tendon inflammation; MASEI: Madrid Sonographic Enthesis Index; PD: power Doppler; OMERACT: Outcome Measures in Rheumatology.