Parental smoking and cessation during pregnancy and the risk of childhood asthma

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http://hdl.handle.net/10138/164629

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Harju , M , Keski-Nisula , L , Georgiadis , L & Heinonen , S 2016 , ' Parental smoking and cessation during pregnancy and the risk of childhood asthma ' BMC Public Health , vol. 16 , 428 . DOI: 10.1186/s12889-016-3029-6

Title: Parental smoking and cessation during pregnancy and the risk of childhood asthma
Author: Harju, Maijakaisa; Keski-Nisula, Leea; Georgiadis, Leena; Heinonen, Seppo
Contributor: University of Helsinki, Department of Obstetrics and Gynegology
Date: 2016-05-24
Language: eng
Number of pages: 7
Belongs to series: BMC Public Health
ISSN: 1471-2458
URI: http://hdl.handle.net/10138/164629
Abstract: Background: To evaluate the association between maternal and paternal smoking during pregnancy, and asthma among offspring. Methods: We conducted a hospital-based birth retrospective observational birth cohort study in a University-based Obstetrics and Gynecology Department, Kuopio University Hospital, Finland. 39 306 women, delivering between 1989 and 2006, were linked to the national register for asthma reimbursement for their offspring (2641 asthmatics). Pregnancy factors were recorded during pregnancy. Results: The risk of asthma was significantly elevated if both parents smoked (aOR 3.7; 95 % Cl 3.2-4.4) and it remained high in only paternal smoking families (aOR 2.9; 95 % Cl 2.5-3.3) as well as only maternal smoking families (aOR 1.7; 95 % Cl 1.2-2.2). Paternal cessation of smoking during pregnancy seemed to reduce the risk of asthma regardless of maternal smoking (aOR 0.3-0.4). Conclusions: Parental smoking, and especially paternal smoking, was significantly associated with the risk of asthma in offspring and paternal cessation of smoking during pregnancy was associated with a decreased risk of childhood asthma regardless of maternal smoking. The results indicate that both parents should be encouraged to quit smoking during pregnancy, since it is a relatively easy and cheap way to reduce the risk of asthma in offspring.
Subject: Smoking
Pregnancy
Childhood
Asthma
Maternal
Paternal
Parental
ADVERSE BIRTH OUTCOMES
POSTNATAL EXPOSURE
RESPIRATORY HEALTH
PREVALENCE
COUNTRIES
FINLAND
WEIGHT
TRENDS
WOMEN
3142 Public health care science, environmental and occupational health
3123 Gynaecology and paediatrics
3121 Internal medicine
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