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. 2014 Nov 14;9(11):e112877. doi: 10.1371/journal.pone.0112877

Table 1. Frequency of PR3-ANCA by CIA, ELISA, and aANCA in PSC vs. all controls, vs. AIH and vs. PBC.

	PSC			Controls			Relevance
	All PSC, n (%)	PSC, n (%)	AIH-PSC, n (%)	All Controls, n (%)	AIH, n (%)	PBC, (%)	p value
PR3-ANCA CIA	94/244 (38.5%)	82/222 (36.9%)	12/22 (54.5%)	27/254 (10.6%)	14/65 (21.5%)	12/91 (13.2%)	<0.0001^a
							0.014 ^b
							<0.0001^c
PR3-ANCA ELISA	57/244 (23.4%)	51/222 (23.0%)	6/22 (27.3%)	6/254 (2.7%)	5/65 (7.7%)	0/91 (0%)	<0.0001^a
							0.005^b
							<0.0001^c
aANCA IIF (Titer 1∶20)	101/244	89/222 (40.1%)	12/22 (54.5%)	51/254 (20.1%)	26/65 (40%)	10/91 (11%)	<0.0001^a
							0.955^b
	(41.4%)						<0.0001^c

^a

p value for PSC vs. all controls.

^b

p value for PSC vs. AIH.

^c

p value for PSC vs. PBC.