TY - JOUR
T1 - Smoking, secondhand smoke, and cotinine levels in a subset of EPIC cohort
AU - Baltar, Valéria Troncoso
AU - Xun, Wei W
AU - Chuang, Shu-Chun
AU - Relton, Caroline
AU - Ueland, Per Magne
AU - Vollset, Stein Emil
AU - Midttun, Øivind
AU - Johansson, Mattias
AU - Slimani, Nadia
AU - Jenab, Mazda
AU - Clavel-Chapelon, Françoise
AU - Boutron-Ruault, Marie-Christine
AU - Fagherazzi, Guy
AU - Kaaks, Rudolf
AU - Rohrmann, Sabine
AU - Boeing, Heiner
AU - Weikert, Cornelia
AU - Bueno-de-Mesquita, H Bas
AU - Boshuizen, Hendriek C
AU - van Gils, Carla H
AU - Peeters, Petra H M
AU - Agudo, Antonio
AU - Barricarte, Aurelio
AU - Navarro, Carmen
AU - Rodríguez, Laudina
AU - Castaño, José Maria Huerta
AU - Larrañaga, Nerea
AU - Pérez, Maria José Sánchez
AU - Khaw, Kay-Tee
AU - Wareham, Nick
AU - Allen, Naomi E
AU - Crowe, Francesca
AU - Gallo, Valentina
AU - Norat, Teresa
AU - Tagliabue, Giovanna
AU - Masala, Giovanna
AU - Panico, Salvatore
AU - Sacerdote, Carlota
AU - Tumino, Rosario
AU - Trichopoulou, Antonia
AU - Lagiou, Pagona
AU - Bamia, Christina
AU - Rasmuson, Torgny
AU - Hallmans, Göran
AU - Roswall, Nina
AU - Tjønneland, Anne
AU - Riboli, Elio
AU - Brennan, Paul
AU - Vineis, Paolo
N1 - ©2011 AACR.
PY - 2011/5
Y1 - 2011/5
N2 - BACKGROUND: Several countries are discussing new legislation regarding the ban on smoking in public places, based on the growing evidence of the hazards of secondhand smoke (SHS) exposure. The objective of the present study is to quantitatively assess the relationship between smoking, SHS, and serum cotinine levels in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort.METHODS: From a study on lung cancer in the EPIC cohort, questionnaire information on smoking was collected at enrolment, and cotinine was measured in serum. Three statistical models were applied by using samples available in a cross-section design: (i) cotinine levels by categories combining smoking and SHS (n = 859); (ii) the effect of hours of passive smoking exposure in nonsmokers only (n = 107); (iii) the effect of the number of cigarettes consumed per day in current smokers only (n = 832). All models were adjusted for country, sex, age, and body mass index.RESULTS: Among nonsmokers, passive smokers presented significant differences in cotinine compared with nonexposed, with a marked (but not significant) difference among former-smokers. A one hour per day increment of SHS gave rise to a significant 2.58 nmol/L (0.45 ng/mL) increase in mean serum cotinine (P < 0.001). In current smokers, a one cigarette per day increment gave rise to a significant 22.44 nmol/L (3.95 ng/mL) increase in cotinine mean (P < 0.001).CONCLUSIONS: There is clear evidence that not only tobacco smoking but also involuntary exposure increases cotinine levels.IMPACT: This study strengthens the evidence for the benefits of a smoking ban in public places.
AB - BACKGROUND: Several countries are discussing new legislation regarding the ban on smoking in public places, based on the growing evidence of the hazards of secondhand smoke (SHS) exposure. The objective of the present study is to quantitatively assess the relationship between smoking, SHS, and serum cotinine levels in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort.METHODS: From a study on lung cancer in the EPIC cohort, questionnaire information on smoking was collected at enrolment, and cotinine was measured in serum. Three statistical models were applied by using samples available in a cross-section design: (i) cotinine levels by categories combining smoking and SHS (n = 859); (ii) the effect of hours of passive smoking exposure in nonsmokers only (n = 107); (iii) the effect of the number of cigarettes consumed per day in current smokers only (n = 832). All models were adjusted for country, sex, age, and body mass index.RESULTS: Among nonsmokers, passive smokers presented significant differences in cotinine compared with nonexposed, with a marked (but not significant) difference among former-smokers. A one hour per day increment of SHS gave rise to a significant 2.58 nmol/L (0.45 ng/mL) increase in mean serum cotinine (P < 0.001). In current smokers, a one cigarette per day increment gave rise to a significant 22.44 nmol/L (3.95 ng/mL) increase in cotinine mean (P < 0.001).CONCLUSIONS: There is clear evidence that not only tobacco smoking but also involuntary exposure increases cotinine levels.IMPACT: This study strengthens the evidence for the benefits of a smoking ban in public places.
KW - Adult
KW - Aged
KW - Case-Control Studies
KW - Cohort Studies
KW - Cotinine
KW - Cross-Sectional Studies
KW - Europe
KW - European Continental Ancestry Group
KW - Female
KW - Humans
KW - Lung Neoplasms
KW - Male
KW - Middle Aged
KW - Prognosis
KW - Prospective Studies
KW - Smoking
KW - Tobacco Smoke Pollution
U2 - 10.1158/1055-9965.EPI-10-1235
DO - 10.1158/1055-9965.EPI-10-1235
M3 - Article (Academic Journal)
C2 - 21357382
SN - 1055-9965
VL - 20
SP - 869
EP - 875
JO - Cancer Epidemiology, Biomarkers and Prevention
JF - Cancer Epidemiology, Biomarkers and Prevention
IS - 5
ER -