Table 1.

Grading criteria for chronic inflammation and activity of gastritis.

Grade	Chronic inflammation	Activity
0	no increase in number of inflammatory cells	same
1	uniform infiltration of lamina propria by lymphocytes, plasma cells, and some eosinophils	scattered neutrophils in the lamina propria with no leukopedesis in the region of the gastric pits
2	moderately dense infiltra- tion of the lamina propria by lymphocytes and plasma cells	moderate number of neutrophils in the lamina propria with microabscess in the region of gastric pits
3	very dense lymphoplasma cell infiltration in the lamina propria	extensive neutrophils in the lamina propria with obvious cryptitis