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Effects of passive smoking on heart rate variability, heart rate and blood pressure: an observational study

Felber Dietrich, Denise ; Schwartz, Joel ; Schindler, Christian ; Gaspoz, Jean-Michel ; Barthélémy, Jean-Claude ; Tschopp, Jean-Marie ; Roche, Frédéric ; von Eckardstein, Arnold ; Brändli, Otto ; Leuenberger, Philippe ; Gold, Diane R. ; Ackermann-Liebrich, Ursula

In: International Journal of Epidemiology, 2007, vol. 36, no. 4, p. 834-840

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    Titre
    • Effects of passive smoking on heart rate variability, heart rate and blood pressure: an observational study
    Auteur
    • Felber Dietrich, Denise. Institute of Social and Preventive Medicine, University of Basel, Switzerland.
    • Schwartz, Joel. Department of Environmental Health, Harvard School of Public Health, Boston, MA.
    • Schindler, Christian. Institute of Social and Preventive Medicine, University of Basel, Switzerland.
    • Gaspoz, Jean-Michel. Division of Primary Care Medicine, University Hospitals, Geneva, Switzerland.
    • Barthélémy, Jean-Claude. Laboratoire de Physiologie Clinique et de l'Exercice, Université Jean Monnet, Saint-Etienne, France.
    • Tschopp, Jean-Marie. Centre Valaisan de Pneumologie, Montana, Switzerland.
    • Roche, Frédéric. Laboratoire de Physiologie Clinique et de l'Exercice, Université Jean Monnet, Saint-Etienne, France.
    • von Eckardstein, Arnold. Institute for Clinical Chemistry, University Hospital Zürich, Switzerland.
    • Brändli, Otto. Zürcher Höhenklinik, Wald, Switzerland.
    • Leuenberger, Philippe. Service of Pulmonology, University Hospital Lausanne, Switzerland.
    • Gold, Diane R.. Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA.
    • Ackermann-Liebrich, Ursula. Institute of Social and Preventive Medicine, University of Basel, Switzerland.
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • International Journal of Epidemiology, 2007, vol. 36, no. 4, p. 834-840. Oxford University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:296704
    Summary
    Background Exposure to environmental tobacco smoke (ETS) has been shown to increase the risk for cardiovascular diseases and death, and autonomic dysfunction (specifically, reduced heart rate variability (HRV)) is a predictor of increased cardiac risk. This study tests the hypothesis that ETS exposure reduces HRV in the general population and discusses possible pathways. Methods This cross-sectional study was conducted between 2001 and 2003 and is part of the SAPALDIA (Swiss Cohort Study on Air Pollution and Lung Diseases in Adults) study. The analysis included 1218 randomly selected non-smokers aged 50 and above who participated in 24-h electrocardiogram recordings. Other examinations included an interview, investigating health status (especially respiratory and cardiovascular health and health relevant behaviours and exposure to ETS) and measurements of blood pressure, body height and weight. Results Subjects exposed to ETS at home or at work for more than 2 h/day had a difference of −15% in total power (95%CI: −26 to −3%), low frequency power (−28 to −1%), low/high frequency ratio (−26 to −3%) and −18% (−29 to −4%) in ultralow frequency power of HRV compared with subjects not exposed to ETS at home or work. We also found a 2.7% (−0.01 to 5.34%) higher heart rate during the recording in exposed subjects. Conclusions Exposure to ETS at home and work is associated with lower HRV and with higher heart rate in an ageing population. Our findings suggest that exposure to ETS increases cardiac risk through disturbances in the autonomic nervous system