Table 3.

 Association between antibodies to carbonic anhydrase II (CA-II Ab), IgG4, clinical, morphological, and biochemical parameters in patients with idiopathic chronic pancreatitis

	Increased CA-II Ab% (n = 15)	Increased IgG4% (n = 8)
Age	59 (15–83)	59 (26–78)
Sex (F/M)	7/8	2/6
Absence of acute attacks of pancreatitis	80	87.5
Cholestasis/jaundice	33.3	75**
Associated autoimmune disorders	60*	87.5**
Pancreatic mass	46.7	62.5
Absence of calcifications	73.3	100**
Absence of pseudocysts	93.3	100
Irregular narrowing of pancreatic duct	50	87.5**
IgG (>1200 mg/dl)	66.7*	100**
Antinuclear antibodies	20	25

Results are expressed as percentage of cases with increased CA-II Ab or IgG4 levels.

The significant association determined by Fisher’s exact test is indicated as *p<0.05, **p<0.01.