Table 5.

 ASCA serology titres with respect to time of surgery

	Early surgery (n = 35)	No early surgery (n = 35)	p Value
ASCA IgA positive (No)	22	7	—
Titre range (EU/ml)	0–111.7	0–114.1	—
Mean titre (all patients) (EU/ml)	38.3	15.3	0.0004*
Mean titre (positive patients only) (EU/ml)	49.6	48.6	0.872
ASCA IgG positive (No)	14	5	—
Titre range (EU/ml)	0–171.0	0–191.3	—
Mean (all patients) (EU/ml)	44.0	22.6	0.0009*
Mean titre (positive patients only) (EU/ml)	51.4	46.6	0.279

ASCA, anti-Saccharomyces cerevisiae antibodies; Ig, immunoglobulin.

*Statistically significant.