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Smokeless tobacco (snus) use and colorectal cancer incidence and survival: Results from nine pooled cohorts
Karolinska Institutet, Stockholm.
Karolinska Institutet, Stockholm; Stockholm Health Care District, Stockholm County Council.
Karolinska Institutet, Stockholm.
Karolinska Institutet, Stockholm.
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2017 (Engelska)Ingår i: Scandinavian Journal of Public Health, ISSN 1403-4948, E-ISSN 1651-1905, Vol. 45, nr 8, s. 741-748Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Aims: Although smoking is considered to be an established risk factor for colorectal cancer, the current evidence on the association between smokeless tobacco and colorectal cancer is scant and inconclusive. We used pooled individual data from the Swedish Collaboration on Health Effects of Snus Use to assess this association. Methods: A total of 417,872 male participants from nine cohort studies across Sweden were followed up for incidence of colorectal cancer and death. Outcomes were ascertained through linkage to health registers. We used shared frailty models with random effects at the study level to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). Results: During 7,135,504 person-years of observation, 4170 men developed colorectal cancer. There was no clear association between snus use and colorectal cancer overall. Exclusive current snus users, however, had an increased risk of rectal cancer (HR 1.40: 95% CI 1.09, 1.79). There were no statistically significant associations between snus use and either all-cause or colorectal cancer-specific mortality after colorectal cancer diagnosis. Conclusions: Our findings, from a large sample, do not support any strong relationships between snus use and colorectal cancer risk and survival among men. However, the observed increased risk of rectal cancer is noteworthy, and in merit of further attention. 

Ort, förlag, år, upplaga, sidor
2017. Vol. 45, nr 8, s. 741-748
Nyckelord [en]
Colorectal cancer, incidence, survival, snus
Nationell ämneskategori
Hälsovetenskaper
Identifikatorer
URN: urn:nbn:se:miun:diva-32719DOI: 10.1177/1403494817714191ISI: 000418185200002PubMedID: 28994648Scopus ID: 2-s2.0-85038388344OAI: oai:DiVA.org:miun-32719DiVA, id: diva2:1176005
Tillgänglig från: 2018-01-19 Skapad: 2018-01-19 Senast uppdaterad: 2018-01-25Bibliografiskt granskad

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Knutsson, Anders

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