Inger T Gram1, Song-Yi Park2, Lynne R Wilkens2, Loïc Le Marchand2, Veronica Wendy Setiawan3. 1. Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Postboks 6050 Langnes, 9037, Tromsø, Norway. inger.gram@uit.no. 2. Population Sciences in the Pacific Program, University of Hawai'i Cancer Center, Honolulu, HI, USA. 3. Department of Population and Public Health Sciences, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA.
Abstract
PURPOSE: To examine whether the detrimental smoking-related association with pancreatic cancer (PC) is the same for women as for men. METHODS: We analyzed data from 192,035 participants aged 45-75 years, enrolled in the Multiethnic Cohort study (MEC) in 1993-1996. We identified PC cases via linkage to the Hawaii and California Surveillance, Epidemiology, and End Results Program cancer registries through December 2017. RESULTS: During a mean follow-up of 19.2 years, we identified 1,936 incident PC cases. Women smokers smoked on average less than men smokers. In multivariate Cox regression models, as compared with sex-specific never smokers, current smokers had a similar elevated risk of PC for women, hazard ratio (HR) 1.49 (95% CI 1.24, 1.79) and as for men, HR 1.48 (95% CI 1.22, 1.79) (pheterogeneity: 0.79). Former smokers showed a decrease in risk of PC for men within 5 years, HR 0.74 (95% CI 0.57, 0.97) and for women within 10 years after quitting, HR 0.70 (95% CI 0.50, 0.96), compared with their sex-specific current smokers. Both sexes showed a consistent, strong, positive dose-response association with PC for the four measures (age at initiation, duration, number of cigarettes per day, number of pack-years) of smoking exposure among current smokers and an inverse association for years of quitting and age at smoking cessation among former smokers (all ptrend's < 0.001). CONCLUSION: Although MEC women smoke on average less than their men counterparts, the smoking-related increase in PC risk and the benefits of cessation seem to be of similar magnitudes for women as for men.
PURPOSE: To examine whether the detrimental smoking-related association with pancreatic cancer (PC) is the same for women as for men. METHODS: We analyzed data from 192,035 participants aged 45-75 years, enrolled in the Multiethnic Cohort study (MEC) in 1993-1996. We identified PC cases via linkage to the Hawaii and California Surveillance, Epidemiology, and End Results Program cancer registries through December 2017. RESULTS: During a mean follow-up of 19.2 years, we identified 1,936 incident PC cases. Women smokers smoked on average less than men smokers. In multivariate Cox regression models, as compared with sex-specific never smokers, current smokers had a similar elevated risk of PC for women, hazard ratio (HR) 1.49 (95% CI 1.24, 1.79) and as for men, HR 1.48 (95% CI 1.22, 1.79) (pheterogeneity: 0.79). Former smokers showed a decrease in risk of PC for men within 5 years, HR 0.74 (95% CI 0.57, 0.97) and for women within 10 years after quitting, HR 0.70 (95% CI 0.50, 0.96), compared with their sex-specific current smokers. Both sexes showed a consistent, strong, positive dose-response association with PC for the four measures (age at initiation, duration, number of cigarettes per day, number of pack-years) of smoking exposure among current smokers and an inverse association for years of quitting and age at smoking cessation among former smokers (all ptrend's < 0.001). CONCLUSION: Although MEC women smoke on average less than their men counterparts, the smoking-related increase in PC risk and the benefits of cessation seem to be of similar magnitudes for women as for men.
Authors: Sara Zanini; Serena Renzi; Antonina R Limongi; Paolo Bellavite; Francesco Giovinazzo; Giovanna Bermano Journal: Eur J Cancer Date: 2021-01-07 Impact factor: 9.162
Authors: L N Kolonel; B E Henderson; J H Hankin; A M Nomura; L R Wilkens; M C Pike; D O Stram; K R Monroe; M E Earle; F S Nagamine Journal: Am J Epidemiol Date: 2000-02-15 Impact factor: 4.897
Authors: Inger T Gram; Song-Yi Park; Lynne R Wilkens; Christopher A Haiman; Loïc Le Marchand Journal: Am J Epidemiol Date: 2020-01-23 Impact factor: 4.897