Table 1

Cross-table of intersection of clinical respectively imaging defined axPsA

axPsA	Imaging definition
Clinical definition	Yes		No		Not performed		Total
	n	%	n	%	n	%	n	%
Yes	134	45	88	30	75	25	297	100
Yes		68		23		9
No	62	6	296	27	740	67	1098	100
No		32		77		91
Total	196	100	384	100	815	100	1395

axPsA, axial psoriatic arthritis.