Table 4. Eradication on stomach H. pylori infection had no effects on oral H. pylori.

Author	Country	No	Time after eradication	Positive H. pylori in Oral	Positive H. pylori in Stomach
Adadi et al.32	Iran	132	After eradication	Patients carrying H. pylori	Patients carrying H. pylori
Wang et al.1	China	159	4 weeks	49.44%	38.6%
Song and Li63	China	391	4 weeks	33.2%	21.6%
Bago et al.39	Croatia	56	3 months	0	21.7%
Gao et al.62	China	96	4 weeks	62.8%	32.4%
Zaric et al.49	Serbia			52%	23%
Gebara et al.61	Brazil	30	3 months	60%	10%
Miyabayashi et al.60	Japan	47	4 weeks and 2 years	69.5%	4.2%
Dore-Davis et al.59	Swiss	22	4 weeks	57%