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@ARTICLE{Papadimitriou:286611,
author = {N. Papadimitriou and N. Kazmi and N. Dimou and K. K.
Tsilidis and R. M. Martin and S. J. Lewis and B. M. Lynch
and M. Hoffmeister$^*$ and S.-S. Kweon and L. Li and R. L.
Milne and L. C. Sakoda and R. E. Schoen and A. I. Phipps and
J. C. Figueiredo and U. Peters and S. C. Dixon-Suen and M.
J. Gunter and N. Murphy},
title = {{L}eisure time television watching, computer use and risks
of breast, colorectal and prostate cancer: {A} {M}endelian
randomisation analysis.},
journal = {Cancer medicine},
volume = {13},
number = {1},
issn = {2045-7634},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {DKFZ-2023-02823},
pages = {e6732},
year = {2024},
note = {2024 Jan;13(1):e6732},
abstract = {Sedentary behaviours have been associated with increased
risks of some common cancers in epidemiological studies;
however, it is unclear if these associations are causal.We
used univariable and multivariable two-sample Mendelian
randomisation (MR) to examine potential causal relationships
between sedentary behaviours and risks of breast, colorectal
and prostate cancer. Genetic variants associated with
self-reported leisure television watching and computer use
were identified from a recent genome-wide association study
(GWAS). Data related to cancer risk were obtained from
cancer GWAS consortia. A series of sensitivity analyses were
applied to examine the robustness of the results to the
presence of confounding.A 1-standard deviation (SD: 1.5
h/day) increment in hours of television watching increased
risk of breast cancer (OR per 1-SD: 1.15, $95\%$ confidence
interval [CI]: 1.05-1.26) and colorectal cancer (OR per
1-SD: 1.32, $95\%$ CI: 1.16-1.49) while there was little
evidence of an association for prostate cancer risk (OR per
1-SD: 0.94, $95\%$ CI: 0.84-1.06). After adjusting for years
of education, the effect estimates for television watching
were attenuated (breast cancer, OR per 1-SD: 1.08, $95\%$
CI: 0.92-1.27; colorectal cancer, OR per 1-SD: 1.08, $95\%$
CI: 0.90-1.31). Post hoc analyses showed that years of
education might have a possible confounding and mediating
role in the association between television watching with
breast and colorectal cancer. Consistent results were
observed for each cancer site according to sex (colorectal
cancer), anatomical subsites and cancer subtypes. There was
little evidence of associations between genetically
predicted computer use and cancer risk.Our univariable
analysis identified some positive associations between hours
of television watching and risks of breast and colorectal
cancer. However, further adjustment for additional lifestyle
factors especially years of education attenuated these
results. Future studies using objective measures of exposure
can provide new insights into the possible role of sedentary
behaviour in cancer development.},
keywords = {Mendelian randomisation (Other) / breast cancer (Other) /
colorectal cancer (Other) / prostate cancer (Other) /
sedentary activities (Other)},
cin = {C070},
ddc = {610},
cid = {I:(DE-He78)C070-20160331},
pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
pid = {G:(DE-HGF)POF4-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38155458},
doi = {10.1002/cam4.6732},
url = {https://inrepo02.dkfz.de/record/286611},
}