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. 2010 Aug;21(8):1247-55.
doi: 10.1007/s10552-010-9552-3. Epub 2010 Apr 8.

The effect of secondhand smoke exposure on the association between active cigarette smoking and colorectal cancer

Luke J Peppone  1 , Mary E Reid, Kirsten B Moysich, Gary R Morrow, Pascal Jean-Pierre, Supriya G Mohile, Tom V Darling, Andrew Hyland
Affiliations

The effect of secondhand smoke exposure on the association between active cigarette smoking and colorectal cancer

Luke J Peppone et al. Cancer Causes Control. 2010 Aug.

Abstract

Background: Studies published prior to 1980 failed to find an association between smoking and colorectal cancer, while subsequent studies reported an association after accounting for a three to four decade initiation period. The aims of this study were to determine the effect of accounting for secondhand smoke (SHS) exposure on the association between smoking and colorectal cancer and to determine the association between SHS and colorectal cancer.

Methods: Approximately 1,200 colorectal cancer cases treated at Roswell Park Cancer Institute between 1982 and 1998 were matched to 2,400 malignancy-free controls. The effect of accounting for SHS exposure was determined by comparing the odds ratios (OR) for each smoking variable in the overall sample and then for those who reported no current SHS exposure.

Results: A small, significant increase in colorectal cancer odds was noted for heavy, long-term smoking males when not accounting for SHS exposure (>45 PY: OR = 1.34; 95% CI 1.04-1.72). OR increased when the analyses were restricted to individuals reporting no current SHS exposure (>45 PY: OR = 2.40; 95% CI 1.36-4.23).

Conclusions: Accounting for SHS exposure resulted in a substantial increase in the odds of colorectal cancer for all smoking variables in this study. Future studies should account for SHS exposure when examining the association between smoking and colorectal cancer.

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Figures

Fig. 1
Fig. 1
Odds ratios for colorectal cancer and daily hours of secondhand smoke (SHS), lifetime never-smokers only, Roswell Park Cancer Institute, 1982–1998
See this image and copyright information in PMC

References

    1. IARC Working Group on the Evaluation of Carcinogenic Risks to Humans. World Health Organization . Tobacco smoke and involuntary smoking. IARC Press; Lyon, France, Geneva: 2004. International Agency for Research on Cancer. distributed by IARC Press and the World Health Organization Distribution and Sales.
    1. Kune GA, Kune S, Vitetta L, et al. Smoking and colorectal cancer risk: data from the Melbourne Colorectal Cancer Study and brief review of literature. Int J Cancer. 1992;50:369–372. - PubMed
    1. Potter JD. Colorectal cancer: molecules and populations. J Natl Cancer Inst. 1999;91:916–932. - PubMed
    1. Yamasaki E, Ames BN. Concentration of mutagens from urine by absorption with the nonpolar resin XAD-2: cigarette smokers have mutagenic urine. Proc Natl Acad Sci USA. 1977;74:3555–3559. - PMC - PubMed
    1. Peppone LJ, Mahoney MC, Cummings KM, et al. Colorectal cancer occurs earlier in those exposed to tobacco smoke: implications for screening. J Cancer Res Clin Oncol. 2008;134:743–751. - PMC - PubMed

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