Table 4. Frequency of PR3-ANCA in PSC & IBD subgroups.

	PSC & IBD	PSC-CD	PSC-UC	PSC-IBD-U	PSC & no IBD	p value
PR3-ANCA CIA	58/142 (40.8%)	13/27 (48.1%)	45/111 (40.5%)	0/4	19/62	0.22a
				0%	-30.60%	1.00 b
PR3-ANCA ELISA	38/142 (26.7%)	6/27 (22.2%)	32/111 (28.8%)	0/4	Oct-62	0.14 a
				0%	−16.10%	0.41 b
aANCA IIF	58/142 (40.8%)	7/27 (25.9%)	47/111 (42.3%)	4-Apr	26/62	1.00 a
				−100%	−41.90%	0.64b

^a P value calculated between PSC & IBD and PSC & no IBD.

^b P value calculated between PSC-CD and PSC-UC.