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Cigarette smoking and the risk of colorectal cancer among men: a prospective study in Japan.
Eur J Cancer Prev. 2007 Apr; 16(2):102-7.EJ

Abstract

The association between cigarette smoking and the risk of colorectal cancer remains controversial. We examined this association using a population-based prospective cohort study in Miyagi, Japan. In 1990, we delivered a self-administered questionnaire on cigarette smoking and other health habits to 25 279 men who were 40-64 years of age and lived in 14 municipalities of Miyagi Prefecture. A total of 22 836 men responded (90.3% response rate). During 7 years of follow-up (158 376 person-years), we identified 188 patients of colorectal cancer. Relative risks and 95% confidence intervals were estimated by the Cox proportional-hazards regression analysis with adjustment for potential confounders. The multivariate-adjusted relative risks (95% confidence interval) of colorectal cancer for past smokers and current smokers compared with those who had never smoked were 1.73 (1.04-2.87) and 1.47 (0.93-2.34), respectively. Among current smokers, both a higher number of cigarettes smoked per day and an earlier age at which smoking had started were associated with a significant linear increase in risk (P for trend <0.05). Our findings are consistent with the hypothesis that cigarette smoking is associated with a higher risk of colorectal cancer in men.

Authors+Show Affiliations

Division of Epidemiology, Department of Public Health and Forensic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan. munira@mail.tains.tohoku.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17297385

Citation

Akhter, Munira, et al. "Cigarette Smoking and the Risk of Colorectal Cancer Among Men: a Prospective Study in Japan." European Journal of Cancer Prevention : the Official Journal of the European Cancer Prevention Organisation (ECP), vol. 16, no. 2, 2007, pp. 102-7.
Akhter M, Nishino Y, Nakaya N, et al. Cigarette smoking and the risk of colorectal cancer among men: a prospective study in Japan. Eur J Cancer Prev. 2007;16(2):102-7.
Akhter, M., Nishino, Y., Nakaya, N., Kurashima, K., Sato, Y., Kuriyama, S., Tsubono, Y., & Tsuji, I. (2007). Cigarette smoking and the risk of colorectal cancer among men: a prospective study in Japan. European Journal of Cancer Prevention : the Official Journal of the European Cancer Prevention Organisation (ECP), 16(2), 102-7.
Akhter M, et al. Cigarette Smoking and the Risk of Colorectal Cancer Among Men: a Prospective Study in Japan. Eur J Cancer Prev. 2007;16(2):102-7. PubMed PMID: 17297385.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cigarette smoking and the risk of colorectal cancer among men: a prospective study in Japan. AU - Akhter,Munira, AU - Nishino,Yoshikazu, AU - Nakaya,Naoki, AU - Kurashima,Kayoko, AU - Sato,Yuki, AU - Kuriyama,Shinichi, AU - Tsubono,Yoshitaka, AU - Tsuji,Ichiro, PY - 2007/2/14/pubmed PY - 2007/6/30/medline PY - 2007/2/14/entrez SP - 102 EP - 7 JF - European journal of cancer prevention : the official journal of the European Cancer Prevention Organisation (ECP) JO - Eur. J. Cancer Prev. VL - 16 IS - 2 N2 - The association between cigarette smoking and the risk of colorectal cancer remains controversial. We examined this association using a population-based prospective cohort study in Miyagi, Japan. In 1990, we delivered a self-administered questionnaire on cigarette smoking and other health habits to 25 279 men who were 40-64 years of age and lived in 14 municipalities of Miyagi Prefecture. A total of 22 836 men responded (90.3% response rate). During 7 years of follow-up (158 376 person-years), we identified 188 patients of colorectal cancer. Relative risks and 95% confidence intervals were estimated by the Cox proportional-hazards regression analysis with adjustment for potential confounders. The multivariate-adjusted relative risks (95% confidence interval) of colorectal cancer for past smokers and current smokers compared with those who had never smoked were 1.73 (1.04-2.87) and 1.47 (0.93-2.34), respectively. Among current smokers, both a higher number of cigarettes smoked per day and an earlier age at which smoking had started were associated with a significant linear increase in risk (P for trend <0.05). Our findings are consistent with the hypothesis that cigarette smoking is associated with a higher risk of colorectal cancer in men. SN - 0959-8278 UR - https://www.unboundmedicine.com/medline/citation/17297385/Cigarette_smoking_and_the_risk_of_colorectal_cancer_among_men:_a_prospective_study_in_Japan_ L2 - http://dx.doi.org/10.1097/01.cej.0000228412.98847.bc DB - PRIME DP - Unbound Medicine ER -