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The Cohort Effect and Helicobacter pylori
Abstract
A total of 631 serum samples collected in 1969, 1979, and 1989 from adults and children were screened for Helicobacter pylori by Western blot analysis. Results showed that H. pylori seroprevalence has become less frequent over the 20-year period. By studying seropositivity by year of birth, the magnitude of a cohort effect of H. pylori seropositivity was estimated. The odds of being seropositive decreased by 26% per decade, P = .008 (95% confidence interval, 8%-41%). Estimates of seroprevalence adjusted for both age-specific variation and the cohort effect suggest that most seropositivity in adults occurs by the age of 15 years. The implication of these findings is that H. pylori infection is becoming less frequent and is predominantly acquired in childhood.
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Cited by
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The impact of the gut microbiota on human health: an integrative view
Clemente, J. C., Ursell, L. K., Parfrey, L. W., & Knight, R. (2012) · Cell · doi:10.1016/j.cell.2012.01.035 · Cited by 3,710
Cancer burden in the year 2000. The global picture
Parkin, D. M., Bray, F. I., & Devesa, S. S. (2001) · European Journal of Cancer · doi:10.1016/s0959-8049(01)00267-2 · Cited by 2,169
What are the consequences of the disappearing human microbiota?
Blaser, M. J., & Falkow, S. (2009) · Nature Reviews Microbiology · doi:10.1038/nrmicro2245 · Cited by 855
Arnold, I. C., Dehzad, N., Reuter, S., Martin, H., Becher, B., Taube, C., & Müller, A. (2011) · Journal of Clinical Investigation · doi:10.1172/jci45041 · Cited by 462
Metadata
- Authors
- Banatvala, N., Mayo, K., Megraud, F., Jennings, R., Deeks, J. J., & Feldman, R. A.
- Venue
- The Journal of Infectious Diseases
- Publisher
- Oxford University Press (OUP)
- Published
- 1993-07
- Volume
- 168
- Issue
- 1
- Pages
- 219-221
- ISSN
- 0022-1899 (ISSN-L)
- 1537-6613
- OpenAlex
- W2079955663
- Cited by
- 539
- References
- 0
- FWCI
- 24.43
- Type
- journal article
- Language
- en
- Open access
- closed
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- Banatvala, N., Mayo, K., Megraud, F., Jennings, R., Deeks, J. J., & Feldman, R. A. (1993). The Cohort Effect and Helicobacter pylori. The Journal of Infectious Diseases. https://doi.org/10.1093/infdis/168.1.219
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