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A three-generation study on the association of tobacco smoking with asthma
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2018 (English)In: International Journal of Epidemiology, ISSN 0300-5771, E-ISSN 1464-3685, Vol. 47, no 4, p. 1106-1117Article in journal (Refereed) Published
Abstract [en]

Background: Mothers' smoking during pregnancy increases asthma risk in their offspring. There is some evidence that grandmothers' smoking may have a similar effect, and biological plausibility that fathers' smoking during adolescence may influence offspring's health through transmittable epigenetic changes in sperm precursor cells. We evaluated the three-generation associations of tobacco smoking with asthma.

Methods: Between 2010 and 2013, at the European Community Respiratory Health Survey III clinical interview, 2233 mothers and 1964 fathers from 26 centres reported whether their offspring (aged ≤51 years) had ever had asthma and whether it had coexisted with nasal allergies or not. Mothers and fathers also provided information on their parents' (grandparents) and their own asthma, education and smoking history. Multilevel mediation models within a multicentre three-generation framework were fitted separately within the maternal (4666 offspring) and paternal (4192 offspring) lines.

Results: Fathers' smoking before they were 15 [relative risk ratio (RRR) = 1.43, 95% confidence interval (CI): 1.01-2.01] and mothers' smoking during pregnancy (RRR = 1.27, 95% CI: 1.01-1.59) were associated with asthma without nasal allergies in their offspring. Grandmothers' smoking during pregnancy was associated with asthma in their daughters [odds ratio (OR) = 1.55, 95% CI: 1.17-2.06] and with asthma with nasal allergies in their grandchildren within the maternal line (RRR = 1.25, 95% CI: 1.02-1.55).

Conclusions: Fathers' smoking during early adolescence and grandmothers' and mothers' smoking during pregnancy may independently increase asthma risk in offspring. Thus, risk factors for asthma should be sought in both parents and before conception.

Place, publisher, year, edition, pages
Oxford University Press, 2018. Vol. 47, no 4, p. 1106-1117
Keywords [en]
asthma, mothers’ smoking during pregnancy, grandmothers’ smoking during pregnancy, fathers’ smoking during puberty, multilevel mediation model, Ageing Lungs in European Cohorts (ALEC) Study
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:umu:diva-145740DOI: 10.1093/ije/dyy031ISI: 000444559900020PubMedID: 29534228OAI: oai:DiVA.org:umu-145740DiVA, id: diva2:1191092
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EU, Horizon 2020, GA-633212Available from: 2018-03-16 Created: 2018-03-16 Last updated: 2018-10-05Bibliographically approved

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Bråbäck, LennartForsberg, Bertil

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