Improved air quality and attenuated lung function decline : modification by obesity in the SAPALDIA cohort
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 2168759
Author(s) Schikowski, Tamara; Schaffner, Emmanuel; Meier, Flurina; Phuleria, Harish C.; Vierkötter, Andrea; Schindler, Christian; Kriemler, Susi; Zemp, Elisabeth; Krämer, Ursula; Bridevaux, Pierre-Olivier; Rochat, Thierry; Schwartz, Joel; Künzli, Nino; Probst-Hensch, Nicole
Author(s) at UniBasel Schikowski, Tamara
Schaffner, Emmanuel
Phuleria, Harish Chandra
Schindler, Christian
Zemp Stutz, Elisabeth
Künzli, Nino
Probst Hensch, Nicole
Year 2013
Title Improved air quality and attenuated lung function decline : modification by obesity in the SAPALDIA cohort
Journal Environmental Health Perspectives
Volume 121
Number 9
Pages / Article-Number 1034-9
Abstract Background: Air pollution and obesity are hypothesized to contribute to accelerated decline in lung function with age through their inflammatory properties. Objective: We investigated whether the previously reported association between improved air quality and lung health in the population-based SAPALDIA cohort is modified by obesity. Methods: We used adjusted mixed-model analyses to estimate the association of average body mass index (BMI) and changes in particulate matter with aerodynamic diameter ≤ 10 µm (PM10; ΔPM10) with lung function decline over a 10-year follow-up period. Results: Lung function data and complete information were available for 4,664 participants. Age-related declines in lung function among participants with high average BMI were more rapid for FVC (forced vital capacity), but slower for FEV1/FVC (forced expiratory volume in 1 sec/FVC) and FEF25–75 (forced expiratory flow at 25–75%) than declines among those with low or normal average BMI. Improved air quality was associated with attenuated reductions in FEV1/FVC, FEF25–75, and FEF25–75/FVC over time among low- and normal-BMI participants, but not overweight or obese participants. The attenuation was most pronounced for ΔFEF25–75/FVC (30% and 22% attenuation in association with a 10-μg/m3 decrease in PM10 among low- and normal-weight participants, respectively.) Conclusion: Our results point to the importance of considering health effects of air pollution exposure and obesity in parallel. Further research must address the mechanisms underlying the observed interaction.
Publisher National Institute of Environmental Health Sciences
ISSN/ISBN 0091-6765 ; 1552-9924
Full Text on edoc Available
Digital Object Identifier DOI 10.1289/ehp.1206145
PubMed ID
ISI-Number WOS:000325149600017
Document type (ISI) Journal Article

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