Table 1.

Baseline characteristics of the subjects

No.	307
Female sex, %	47.9
Age, mean (SD), y	49.9 (12.1)
Body mass index, mean (SD), kg/m2	22.4 (3.2)
Drinking, %	26.7
Smoking, %	8.1
Family history of gastric cancer, %	16.6
Positive H. pylori antibody, %	83.1
Kyoto score, mean (SD)	4.52 (1.56)
Atrophy score, mean (SD)	1.34 (0.50)
Intestinal metaplasia score, mean (SD)	0.60 (0.73)
Diffuse redness score, mean (SD)	1.71 (0.34)
Nodularity score, mean (SD)	0.39 (0.38)
Enlarged folds score, mean (SD)	0.49 (0.36)