Table 1.

Comparison of endoscopic image clarity in each group of patients.

	Group	1 score	2 score	3 score	4 score
Gastric pit shape	B group (n = 50)	1	6	18	25∗
	A group (n = 50)	2	24	20	4
Microvascular morphology	B group (n = 50)	0	9	19	21∗
	A group (n = 50)	1	17	21	11
Lesion outline	B group (n = 50)	0	6	17	27∗
	A group (n = 50)	1	18	21	10

Note: compared with group A, ^∗P < 0.05.