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Related Experiment Videos

Inverse association between periodontitis and respiratory allergies.

N Friedrich1, H Völzke, C Schwahn

  • 1Institute of Epidemiology and Social Medicine, Ernst Moritz Arndt University Greifswald, Germany. nele.friedrich@uni-greifswald.de

Clinical and Experimental Allergy : Journal of the British Society for Allergy and Clinical Immunology
|April 25, 2006
PubMed
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This study found that periodontitis, a gum infection, is inversely associated with respiratory allergies like hayfever and house dust mite allergy, potentially supporting the hygiene hypothesis.

Area of Science:

  • Oral health
  • Immunology
  • Epidemiology

Background:

  • Periodontitis is a prevalent adult infection with known systemic effects.
  • The hygiene hypothesis suggests early-life infections may protect against allergies.

Purpose of the Study:

  • To investigate the independent relationship between periodontitis and respiratory allergies.
  • Specifically examining associations with hayfever, house dust mite (HDM) allergy, and asthma.

Main Methods:

  • Analysis of 2837 subjects (aged 20-59) from the Study of Health in Pomerania (SHIP).
  • Periodontitis assessed by measuring attachment loss (AL).
  • Logistic regression used to calculate odds ratios (ORs) and 95% confidence intervals (CIs).

Main Results:

Related Experiment Videos

  • Inverse associations found between periodontitis and hayfever (P(trend)=0.01) and HDM allergy (P(trend)=0.02).
  • Increasing attachment loss showed a trend of decreasing risk for hayfever and HDM allergy.
  • A slightly inverse association was observed for asthma (P(trend)=0.11).

Conclusions:

  • An inverse association exists between periodontitis and respiratory allergies.
  • These findings may lend support to the hygiene hypothesis.