Narrow-band imaging with magnifying endoscopy is accurate for detecting gastric intestinal metaplasia

Table 1 Demographic and clinical characteristics of unselected patients (n = 100) included in the study n (%)

Demographic and clinical features	Patients
Age, yr (mean ± SD)	67 ± 12
Sex
Male	42 (42)
Female	58 (58)
H. pylori infection
Positive	31(31)
Negative	69 (69)
Smoking
Non-smoker	68 (68)
Current smoker	16 (16)
Former smoker	16 (16)
Alcohol consuming
Non-drinker	75 (75)
Current drinker	25 (25)
Medication
PPI users	67 (67)
Light blue crests
Present	33 (33)
Absent	67 (67)

Data are expressed as absolute numbers (percentages) or mean ± SD. H. pylori: Helicobacter pylori; PPI: Proton-pump inhibitors.

Table 2 Relationship between narrow-band-imaging with magnification endoscopy ranking and the percentage of gastric intestinal metaplasia detected by histological assessment

Intestinal metaplasia	LBC (n)				Total (n)
	Negative	+	++	+++
0%	59	6	0	0	65
≤ 5%	7	8	2	0	17
5%-45%	1	6	5	2	14
45%-80%	0	0	2	1	3
≥ 80%	0	0	0	1	1

LBC: Light blue crest.