Does Helicobacter pylori Infection Increase Incidence of Dementia? The Personnes Agées QUID Study - Roubaud Baudron - 2012 - Journal of the American Geriatrics Society - Wiley Online Library


At baseline, 391 (64.8%) subjects (348 women, mean age 73.9 ± 6.5) were seropositive for H. pylori. Dementia prevalence was higher in the infected group (5.4% vs 1.4%, = .02). After 20 years of follow-up, 148 incident cases of dementia were diagnosed. After controlling for age, sex, educational level, apolipoprotein E4 status, cardiovascular risk factors, and Mini-Mental State Examination score, H. pyloriinfection was determined to be a risk factor for developing dementia (hazard ratio = 1.46, = .04).

Conclusion

This longitudinal population-based study provides additional epidemiological support to the hypothesis of an association between dementia and H. pylori infection, which may enhance neurodegeneration.

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