TY - JOUR
T1 - Cigarette Smoking and Colorectal Cancer Risk in the European Prospective Investigation Into Cancer and Nutrition Study
AU - Leufkens, Anke M.
AU - Van Duijnhoven, Franzel J. B.
AU - Siersema, Peter D.
AU - Boshuizen, Hendriek C.
AU - Vrieling, Alina
AU - Agudo, Antonio
AU - Gram, Inger T.
AU - Weiderpass, Elisabete
AU - Dahm, Christina
AU - Overvad, Kim
AU - Tjonneland, Anne
AU - Olsen, Anja
AU - Boutron-Ruault, Marie-Christine
AU - Clavel-Chapelon, Francoise
AU - Morois, Sophie
AU - Palli, Domenico
AU - Grioni, Sara
AU - Tumino, Rosario
AU - Sacerdote, Charlotta
AU - Mattiello, Amalia
AU - Herman, Silke
AU - Kaaks, Rudolf
AU - Steffen, Annika
AU - Boeing, Heiner
AU - Trichopoulou, Antonia
AU - Lagiou, Pagona
AU - Trichopoulos, Dimitrios
AU - Peeters, Petra H.
AU - van Gils, Carla H.
AU - van Kranen, Henk
AU - Lund, Eliv
AU - Dumeaux, Vanessa
AU - Engeset, Dagrun
AU - Rodriguez, Laudina
AU - Sanchez, Maria-Jose
AU - Chirlaque, Maria-Dolores
AU - Barricarte, Aurelio
AU - Manjer, Jonas
AU - Almquist, Martin
AU - van Guelpen, Bethany
AU - Hallmans, Goran
AU - Khaw, Kay-Tee
AU - Wareham, Nick
AU - Tsilidis, Konstantinos K.
AU - Straif, Kurt
AU - Leon-Roux, Maria
AU - Vineis, Paul
AU - Norat, Teresa
AU - Riboli, Elio
AU - Bueno-de-Mesquita, H. Bas
PY - 2011
Y1 - 2011
N2 - BACKGROUND & AIMS: There has been consistent evidence for a relationship between smoking and colorectal cancer (CRC), although it is not clear whether the colon or rectum is more sensitive to the effects of smoking. We investigated the relationships between cigarette smoking and risk of CRC and tumor location. METHODS: We analyzed data from 465,879 participants in the European Prospective Investigation into Cancer and Nutrition (EPIC) study; 2741 developed CRC during the follow-up period (mean, 8.7 years). Cox proportional hazard regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS: The risk of colon carcinoma was increased among ever smokers (HR, 1.18; 95% CI, 1.06-1.32) and former cigarette smokers (HR, 1.21; 95% CI, 1.08-1.36), compared with never smokers; the increased risk for current smokers was of borderline significance (HR, 1.13; 95% Cl, 0.98-1.31). When stratified for tumor location, the risk of proximal colon cancer was increased for former (HR, 1.25; 95% CI, 1.04-1.50) and current smokers (HR, 1.31; 95% CI, 1.06-1.64), but the risks for cancers in the distal colon or rectum were not. Subsite analyses showed a nonsignificant difference between the proximal and distal colon (P=.45) for former smokers and a significant difference for current smokers (P=.02). For smokers who had stopped smoking for at least 20 years, the risk of developing colon cancer was similar to that of never smokers. CONCLUSIONS: Ever smokers have an increased risk of colon cancer, which appeared to be more pronounced in the proximal than the distal colon location.
AB - BACKGROUND & AIMS: There has been consistent evidence for a relationship between smoking and colorectal cancer (CRC), although it is not clear whether the colon or rectum is more sensitive to the effects of smoking. We investigated the relationships between cigarette smoking and risk of CRC and tumor location. METHODS: We analyzed data from 465,879 participants in the European Prospective Investigation into Cancer and Nutrition (EPIC) study; 2741 developed CRC during the follow-up period (mean, 8.7 years). Cox proportional hazard regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS: The risk of colon carcinoma was increased among ever smokers (HR, 1.18; 95% CI, 1.06-1.32) and former cigarette smokers (HR, 1.21; 95% CI, 1.08-1.36), compared with never smokers; the increased risk for current smokers was of borderline significance (HR, 1.13; 95% Cl, 0.98-1.31). When stratified for tumor location, the risk of proximal colon cancer was increased for former (HR, 1.25; 95% CI, 1.04-1.50) and current smokers (HR, 1.31; 95% CI, 1.06-1.64), but the risks for cancers in the distal colon or rectum were not. Subsite analyses showed a nonsignificant difference between the proximal and distal colon (P=.45) for former smokers and a significant difference for current smokers (P=.02). For smokers who had stopped smoking for at least 20 years, the risk of developing colon cancer was similar to that of never smokers. CONCLUSIONS: Ever smokers have an increased risk of colon cancer, which appeared to be more pronounced in the proximal than the distal colon location.
KW - Colorectal Cancer
KW - Tumor Location
KW - Tobacco
KW - Risk Factor
U2 - 10.1016/j.cgh.2010.10.012
DO - 10.1016/j.cgh.2010.10.012
M3 - Article
C2 - 21029790
SN - 1542-7714
VL - 9
SP - 137
EP - 144
JO - Clinical Gastroenterology and Hepatology
JF - Clinical Gastroenterology and Hepatology
IS - 2
ER -