Journal Article

Blood Pressure, Smoking, and the Incidence of Lung Cancer in Hypertensive Men in North Karelia, Finland

Annamarja Lindgren, Eero Pukkala, Aulikki Nissinen and Jaakko Tuomilehto

in American Journal of Epidemiology

Published on behalf of Johns Hopkins Bloomberg School of Public Health

Volume 158, issue 5, pages 442-447
Published in print September 2003 | ISSN: 0002-9262
Published online September 2003 | e-ISSN: 1476-6256 | DOI: http://dx.doi.org/10.1093/aje/kwg179
Blood Pressure, Smoking, and the Incidence of Lung Cancer in Hypertensive Men in North Karelia, Finland

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Few studies have suggested that elevated blood pressure might be associated with increased risk of lung cancer and that this association might vary according to smoking status. The aim of this study was to assess the effect of blood pressure and its possible interaction with smoking on lung cancer incidence in hypertensive patients. Lung cancer incidence was determined for 7,908 men enrolled in the hypertension register of the North Karelia Project between 1972 and 1988 by record linkage to the nationwide Finnish Cancer Registry. In a Cox regression model, both systolic and diastolic blood pressures were significant predictors of lung cancer, with a 10% increase in risk per 10-mmHg increment in blood pressure. In smokers, the age-adjusted hazard ratio associated with a 10-mmHg increment in diastolic blood pressure was 1.17 (95% confidence interval: 1.05, 1.29), and in nonsmokers it was 0.98 (95% confidence interval: 0.80, 1.16). For systolic blood pressure, these hazard ratios were 1.11 (95% confidence interval: 1.05, 1.17) for smokers and 1.04 (95% confidence interval: 0.95, 1.14) for nonsmokers. These findings suggest that high blood pressure levels are associated with increased risk of lung cancer in smoking, hypertensive men.

Keywords: hypertension; incidence; lung neoplasms; medical record linkage; risk; smoking

Journal Article.  3826 words.  Illustrated.

Subjects: Public Health and Epidemiology

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