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Clinical and Diagnostic Laboratory Immunology, January 2005, p. 81-85, Vol. 12, No. 1
1071-412X/05/$08.00+0     doi:10.1128/CDLI.12.1.81-85.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Seroprevalence of Helicobacter pylori Infection in Urban and Rural Vietnam

Thi Thu Ha Hoang,1,2 Carina Bengtsson,1 Dac Cam Phung,2 Mikael Sörberg,3 and Marta Granström1*

Department of Clinical Microbiology, MTC,1 Department of Medicine, Unit of Infectious Diseases, Karolinska Hospital, Karolinska Institutet, Stockholm, Sweden,3 National Institute of Hygiene and Epidemiology, Hanoi, Vietnam2

Received 24 March 2004/ Returned for modification 12 August 2004/ Accepted 6 October 2004

Helicobacter pylori-associated diseases, such as peptic ulcer and gastric cancer, are common in Vietnam, but the prevalence of the infection is largely unknown. A validated enzyme-linked immunosorbent assay was used for seroepidemiology with 971 samples from the general population, ages 0 to 88 years, with 546 samples from an urban population (Hanoi), and with 425 samples from a poor, rural province (Hatay). The overall seroprevalence of the infection was 746 per 1,000, with a prevalence of 788 per 1,000 in Hanoi and 692 per 1,000 in Hatay (P = 0.0007). The risk for infection in the rural area of Hatay was 40% lower than in the urban population of Hanoi, with the odds ratio being 0.59 (95% confidence interval, 0.43 to 0.81). The study shows that the prevalence of H. pylori infection is high in Vietnam and especially high in a large urban area, such as the city of Hanoi.

* Corresponding author. Mailing address: Department of Clinical Microbiology, Karolinska Hospital, S-171 76 Stockholm, Sweden. Phone: 46-8-517 73564. Fax: 46-8-308099. E-mail: marta.granstrom{at}labmed.ki.se.

Clinical and Diagnostic Laboratory Immunology, January 2005, p. 81-85, Vol. 12, No. 1
1071-412X/05/$08.00+0     doi:10.1128/CDLI.12.1.81-85.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.





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