Can eradication rate of gastric Helicobacter pylori be improved by killing oral Helicobacter pylori?

Table 2 Results of Helicobacter pylori antigen test and ¹³C-urea breath test testing n (%)

HPS	13C-UBT
	Positive	Negative
Peptic ulcer (n = 54)
Positive	29 (53.7)	8 (14.8)
Negative	14 (25.9)	3 ( 5.6)
Chronic atrophic gastritis (n = 48)
Positive	24 (50.0)	14 (29.1)
Negative	8 (16.7)	2 ( 4.2)
Duodenitis (n = 58)
Positive	35 (60.3)	16 (27.6)
Negative	2 ( 3.4)	5 (8.7)
Superficial gastritis (n = 231)
Positive	79 (34.2)	89 (38.5)
Negative	25 (10.8)	38 (16.5)
Control group (n = 40)
Positive	12 (30.0)	21 (52.5)
Negative	5 (12.5)	2 ( 5.0)

HPS: Helicobacter pylori antigen test; ¹³C-UBT: ¹³C-urea breath test.