Table 3.

Variables selected by feature selection

Order	Feature name	Score
1	Helicobacter pylori infection	4.10
2	High salt intake	1.807
3	Chronic atrophic gastritis	1.802
4	Fruits consumption	1.59
5	Stomach or duodenal ulcers	1.45
6	Weight loss	1.42
7	High fat foods	1.36
8	Education level	1.34
9	Smoking	1.22
10	Stress status	1.19
11	Weight loss	1.14