	SUVmax				FDG uptake score
	SpA	PMR	RA	P	SpA	PMR	RA	P
Ischial tuberosity	2.80±1.92	3.74±1.22	1.74±0.40	<0.001*	1.81±1.36	3.06±0.10	0.81±0.66	<0.001*
Greater trochanter	2.14±1.10	2.67±0.77	1.71±0.77	0.010*	1.33±1.35	2.06±0.85	0.69±0.87	0.003*
Spinous process	2.46±1.41	3.07±1.19	1.81±0.79	0.004*	1.71±1.35	2.44±1.36	0.75±0.86	0.008*
Vertebral body	2.51±0.61	2.31±0.66	2.46±0.66	0.488	1.90±0.83	1.63±0.96	1.73±0.80	0.374
Sacroiliac joint	2.28±0.55	1.83±0.32	1.84±0.47	0.010	1.81±0.87	0.75±0.45	1.07±0.83	<0.001*

*Significant difference between groups found by Kruskal-Wallis test.