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The Association of Gum Bleeding with Respiratory Health in a Population Based Study from Northern Europe
Univ Bergen, Dept Clin Sci, Bergen, Norway.;Haukeland Hosp, Dept Gynecol & Obstet, N-5021 Bergen, Norway..
Univ Bergen, Dept Clin Sci, Bergen, Norway..
Umea Univ, Dept Surg & Perioperat Sci, Umea, Sweden..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
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2016 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 1, e0147518Article in journal (Refereed) Published
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Abstract [en]

Background There is little knowledge about how oral and respiratory health is interrelated even though the mucosa of the oral cavity and airways constitutes a continuum and the exposures to these are partly similar. Aims To investigate whether gum bleeding is related to asthma, respiratory symptoms and self-reported COPD. Methods A postal questionnaire including questions about respiratory and oral health was sent to general population samples in seven Northern European centres. In 13,409 responders, gum bleeding when brushing teeth was reported always/often by 4% and sometimes by 20%. Logistic regressions accounted for age, smoking, educational level, centre and gender. Effects of BMI, cardio-metabolic diseases, early life factors, gastro-oesophageal reflux, dental hygiene, nasal congestion, and asthma medication were addressed. Results Gum bleeding always/often was significantly associated with >= 3 asthma symptoms (OR 2.58, 95% CI 2.10-3.18), asthma (1.62 [1.23-2.14]) and self-reported COPD (2.02 [1.283.18]). There was a dose-response relationship between respiratory outcomes and gum bleeding frequency (>= 3 symptoms: gum bleeding sometimes 1.42 [1.25-1.60], often/always 2.58 [2.10-3.18]), and there was no heterogeneity between centres (p(heterogeneity) = 0.49). None of the investigated risk factors explained the associations. The observed associations were significantly stronger among current smokers (p(interaction) = 0.004). Conclusions A consistent link between gum bleeding and obstructive airways disease was observed, not explained by common risk factors or metabolic factors. We speculate that oral pathogens might have unfavourable impact on the airways, and that the direct continuity of the mucosa of the oral cavity and the airways reflects a pathway that might provide novel opportunities for interventions.

Place, publisher, year, edition, pages
2016. Vol. 11, no 1, e0147518
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Respiratory Medicine and Allergy
Identifiers
URN: urn:nbn:se:uu:diva-281993DOI: 10.1371/journal.pone.0147518ISI: 000369527800119OAI: oai:DiVA.org:uu-281993DiVA: diva2:916188
Funder
Swedish Heart Lung FoundationForte, Swedish Research Council for Health, Working Life and WelfareSwedish Asthma and Allergy Association
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 * Shared last authorship

Available from: 2016-04-01 Created: 2016-04-01 Last updated: 2017-11-30Bibliographically approved

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Lindberg, EvaJanson*, Christer

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