Semiquantitative Evaluation of Extrasynovial Soft Tissue Inflammation in the Shoulders of Patients with Polymyalgia Rheumatica and Elderly-Onset Rheumatoid Arthritis by Power Doppler Ultrasound

Table 3

Intra- and interobserver reliability evaluated by rescoring 184 images blindly shown as unweighted kappa statistics.

Pathology and mode	Number of the images evaluated	Intraobserver	Interobserver
LHB (GS & PD)	72	0.78	0.626
Bursa (GS & PD)	72	0.926	0.72
GHJ (GS & PD)	40	0.753	0.616
GS (all pathologies)	92	0.807	0.657
PD (all pathologies)	92	0.886	0.69
Overall	184	0.844	0.675

LHB, long head of biceps tendon sheath; GHJ, glenohumeral joint; GS, gray scale; PD, power Doppler.