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Smoking behavior and lung cancer in a biracial cohort: The atherosclerosis risk in communities study

journal contribution
posted on 01.06.2014, 00:00 authored by A E Prizment, H Yatsuya, P L Lutsey, J H Lubin, M Woodward, A R Folsom, Rachel HuxleyRachel Huxley
Background In the U.S., the incidence of lung cancer varies by race, with rates being highest among black men. There are marked differences in smoking behavior between blacks and whites, but little is known regarding how these differences contribute to the racial disparities in lung cancer. Purpose To compare the lung cancer risk associated with smoking in 14,610 blacks and whites in the prospective cohort Atherosclerosis Risk in Communities study. Methods Smoking characteristics were ascertained at baseline and three follow-up visits in 1990-1992, 1993-1995, and 1996-1998 (response rates were 93%, 86%, and 80%, respectively), as well as from annual telephone interviews. Data were analyzed in the fall of 2012. Multivariable-adjusted proportional hazards models were used to calculate hazard ratios and 95% CIs for lung cancer. Results Over 20 years of follow-up (1987-2006), 470 incident cases of lung cancer occurred. Lung cancer incident rates were highest in black men and lowest in black women. However, there was no evidence to support racial differences in the associations of smoking status, intensity, or age at initiation with lung cancer risk (all pinteraction 0.25). The hazard ratio for those who started smoking at age 12 versus >22 years was 3.03 (95% CI=1.62, 5.67). Prolonged smoking cessation ( 10 years) was associated with a decrease in lung cancer risk, with equivalent benefits in whites and blacks, 84% and 74%, respectively (p bsubesub=0.25). Conclusions Smoking confers similar lung cancer risk in blacks and whites. ©2014 American Journal of Preventive Medicine.

History

Journal

American Journal of Preventive Medicine

Volume

46

Issue

6

Pagination

624 - 632

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0749-3797

eISSN

1873-2607

Language

eng

Publication classification

C1 Refereed article in a scholarly journal