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Does Mortality Risk of Cigarette Smoking Depend on Serum Concentrations of Persistent Organic Pollutants?: Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) Study
Kyungpook Natl Univ, Sch Med, Dept Prevent Med, Taegu, South Korea; Kyungpook Natl Univ, Dept Biomed Sci, Plus KNU Biomed Convergence Program BK21, Taegu, South Korea.
Univ Uppsala Hosp, Dept Med Sci, Uppsala, Sweden.
Univ Minnesota, Sch Publ Hlth, Div Epidemiol & Community Hlth, Minneapolis, MN USA; Univ Oslo, Dept Nutr, Oslo, Norway.
Örebro University, School of Science and Technology.ORCID iD: 0000-0001-5752-4196
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2014 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 9, no 5, e95937- p.Article in journal (Refereed) Published
Abstract [en]

Cigarette smoking is an important cause of preventable death globally, but associations between smoking and mortality vary substantially across country and calendar time. Although methodological biases have been discussed, it is biologically plausible that persistent organic pollutants (POPs) like polychlorinated biphenyls (PCBs) and organochlorine (OC) pesticides can affect this association. This study was performed to evaluate if associations of cigarette smoking with mortality were modified by serum concentrations of PCBs and OC pesticides. We evaluated cigarette smoking in 111 total deaths among 986 men and women aged 70 years in the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) with mean follow-up for 7.7 years. The association between cigarette smoking and total mortality depended on serum concentration of PCBs and OC pesticides (P value for interaction = 0.02). Among participants in the highest tertile of the serum POPs summary score, former and current smokers had 3.7 (95% CI, 1.5-9.3) and 6.4 (95% CI, 2.3-17.7) times higher mortality hazard, respectively, than never smokers. In contrast, the association between cigarette smoking and total mortality among participants in the lowest tertile of the serum POPs summary score was much weaker and statistically nonsignificant. The strong smoking-mortality association observed among elderly people with high POPs was mainly driven by low risk of mortality among never smokers with high POPs. As smoking is increasing in many low-income and middle-income countries and POPs contamination is a continuing problem in these areas, the interactions between these two important health-related issues should be considered in future research.

Place, publisher, year, edition, pages
San Francisco: Public Library Science , 2014. Vol. 9, no 5, e95937- p.
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-35836DOI: 10.1371/journal.pone.0095937ISI: 000336857400019OAI: oai:DiVA.org:oru-35836DiVA: diva2:735680
Funder
Swedish Research Council
Note

Funding Agencies:

Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS)

Korea Health technology RD Project

Ministry of Health & Welfare, Republic of Korea

BK21 PLUS KNU Biomedical Convergence Program for Creative Talent

Available from: 2014-07-30 Created: 2014-07-30 Last updated: 2017-10-17Bibliographically approved

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