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Thrift, A.P.* ; Gong, J.* ; Peters, U.* ; Chang-Claude, J.* ; Rudolph, A.* ; Slattery, M.L.* ; Chan, A.T.* ; Esko, T.* ; Wood, A.R.* ; Yang, J.* ; Vedantam, S.* ; Gustafsson, S.* ; Pers, T.H.* ; GIANT Consortium (Albrecht, E. ; Gieger, C. ; Grallert, H. ; Heid, I.M. ; Illig, T. ; Müller-Nurasyid, M. ; Peters, A. ; Thorand, B. ; Wichmann, H.-E.) ; Baron, J.A.* ; Bézieau, S.* ; Kuery, S.* ; Ogino, S.* ; Berndt, S.I.* ; Casey, G.* ; Haile, R.W.* ; Du, M.* ; Harrison, T.A.* ; Thornquist, M.* ; Duggan, D.J.* ; Le Marchand, L.* ; Lemire, M. ; Lindor, N.M.* ; Seminara, D.* ; Song, M.* ; Thibodeau, S.N.* ; Cotterchio, M.* ; Win, A.K.* ; Jenkins, M.A.* ; Hopper, J.L.* ; Ulrich, C.M.* ; Potter, J.D.* ; Newcomb, P.A.* ; Schoen, R.E.* ; Hoffmeister, M.* ; Brenner, H.* ; White, E.S.* ; Hsu, L.A.* ; Campbell, P.T.*

Mendelian randomization study of height and risk of colorectal cancer.

Int. J. Epidemiol. 44, 662-672 (2015)
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Background: For men and women, taller height is associated with increased risk of all cancers combined. For colorectal cancer (CRC), it is unclear whether the differential association of height by sex is real or is due to confounding or bias inherent in observational studies. We performed a Mendelian randomization study to examine the association between height and CRC risk. Methods: To minimize confounding and bias, we derived a weighted genetic risk score predicting height (using 696 genetic variants associated with height) in 10 226 CRC cases and 10 286 controls. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (95% CI) for associations between height, genetically predicted height and CRC. Results: Using conventional methods, increased height (per 10-cm increment) was associated with increased CRC risk (OR = 1.08, 95% CI = 1.02-1.15). In sex-specific analyses, height was associated with CRC risk for women (OR = 1.15, 95% CI = 1.05-1.26), but not men (OR = 0.98, 95% CI = 0.92-1.05). Consistent with these results, carrying greater numbers of (weighted) height-increasing alleles (per 1-unit increase) was associated with higher CRC risk for women and men combined (OR = 1.07, 95% CI = 1.01-1.14) and for women (OR = 1.09, 95% CI = 1.01-1.19). There was weaker evidence of an association for men (OR = 1.05, 95% CI = 0.96-1.15). Conclusion: We provide evidence for a causal association between height and CRC for women. The CRC-height association for men remains unclear and warrants further investigation in other large studies.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Body Height ; Colorectal Cancer ; Epidemiology; Genome-wide Association; Colon-cancer; Body-size; United-states; Instrumental Variables; Genetic Epidemiology; Susceptibility Loci; Cigarette-smoking; Rectal-cancer; Women
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 0300-5771
e-ISSN 1464-3685
Journal International Journal of Epidemiology
Quellenangaben Volume: 44, Issue: 2, Pages: 662-672 Article Number: , Supplement: ,
Publisher Oxford University Press
Publishing Place Oxford
Reviewing status Peer reviewed
Institute(s) Institute of Genetic Epidemiology (IGE)
Institute of Epidemiology (EPI)
POF-Topic(s) 30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
30202 - Environmental Health
Research field(s) Genetics and Epidemiology
PSP Element(s) G-504100-001
G-504091-004
G-504091-002
G-504000-002
DOI 10.1093/ije/dyv082
WOS ID WOS:000357106100028
Erfassungsdatum 2015-07-24
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