Table 1. The IL-22 expression is inversely associated with CCL20 expression in gastric mucosa tissues evaluated by IHC.

	CCL20 Negative (N = 13)	CCL20 Positive (N = 11)
IL-22 Negative (N = 14)	5 (35.7%)	9 (64.3%)
IL-22 Positive (N = 10)	8 (80%)	2 (20%)

Gastric mucosa specimens (n = 24) obtained from patients with H. pylori-induced MALToma were subjected to immunohistochemistry analysis for detecting CCL20 and IL-22 expression. Samples were assigned positive or negative for the expression as described in the MATERIALS AND METHODS section. Statistical significance of the differences was determined by the Fisher's exact test with p = 0.047.