Standard vs magnifying narrow-band imaging endoscopy for diagnosis of Helicobacter pylori infection and gastric precancerous conditions

Table 5 Logistic regression analysis of the associations of endoscopic mucosal patterns with gastric precancerous conditions

Mucosal pattern	Moderate to severe atrophy		Intestinal metaplasia, corpus		PG I/II ratio ≤ 3
	OR (95%CI)	P value	OR (95%CI)	P value	OR (95%CI)	P value
Standard		0.001		0.189		0.004
Type A	1 (ref.)		1 (ref.)		1 (ref.)
Type B + C	5.56 (2.07-14.92)		1.96 (0.72-5.33)		4.48 (1.60-12.54)
M-NBI		0.007		0.162		0.029
Type Z-1	1 (ref.)		1 (ref.)		1 (ref.)
Type Z-2 + Z-3	8.67 (1.82-41.30)		2.12 (0.74-6.07)		5.69 (1.19-27.18)

M-NBI: Magnifying narrow-band imaging; PG: Pepsinogen; OR: Odds ratio; CI: Confidence interval.