Table 3.

 Frequency of positive serum values for ASCA, pANCA, and OmpC, and results of McNemar’s test

	All subjects (n = 70)	Early surgery (n = 35)	No early surgery (n = 35)	p Value	OR (95% CI)
ASCA
ASCA IgA (No (%))	29 (41.4)	22 (62.9)	7 (20.0)	0.001*	8.50 (2.02–75.85)
ASCA IgG (No (%))	19 (27.1)	14 (40.0)	5 (14.3)	0.027*	5.50 (1.20–51.07)
ASCA IgA and IgG (No (%))	18 (25.7)	13 (37.1)	5 (14.3)	0.043*	5.00 (1.07–46.93)
DNAse sensitive pANCA (No (%))	15 (21.4)	5 (14.3)	10 (28.6)	0.423	0.56 (0.15–1.85)
OmpC (No (%))	14 (20.0)	4 (11.4)	10 (28.6)	0.114	0.250 (0.03–1.25)

*Statistically significant.

ASCA, anti-Saccharomyces cerevisiae antibodies; pANCA, perinuclear antineutrophil cytoplasmic antibodies; OmpC, Escherichia coli outer membrane porin C; Ig, immunoglobulin.

OR (95% CI), odds ratio (95% confidence interval).