Mendelian randomization study of height and risk of colorectal cancer

Thrift, Aaron P, Gong, Jian, Peters, Ulrike, Chang-Claude, Jenny, Rudolph, Anja, Slattery, Martha L, Chan, Andrew T, Esko, Tonu, Wood, Andrew R, Yang, Jian, Vedantam, Sailaja, Gustafsson, Stefan, Pers, Tune H., Baron, John A., Bezieau, Stephane, Kuery, Sebastien, Ogino, Shuji, Berndt, Sonja I, Casey, Graham, Haile, Robert W, Du, Mengmeng, Harrison, Tabitha A, Thornquist, Mark, Duggan, David J., Le Marchand, Loic, Lemire, Mathieu, Lindor, Noralane M, Seminara, Daniela, Song, Mingyang, Thibodeau, Stephen N, Cotterchio, Michelle, Win, Aung Ko, Jenkins, Mark A, Hopper, John L, Ulrich, Cornelia M, Potter, John D, Newcomb, Polly A, Schoen, Robert E, Hoffmeister, Michael, Brenner, Hermann, White, Emily, Hsu, Li and Campbell, Peter T (2015) Mendelian randomization study of height and risk of colorectal cancer. International Journal of Epidemiology, 44 2: 662-672. doi:10.1093/ije/dyv082

Author Thrift, Aaron P
Gong, Jian
Peters, Ulrike
Chang-Claude, Jenny
Rudolph, Anja
Slattery, Martha L
Chan, Andrew T
Esko, Tonu
Wood, Andrew R
Yang, Jian
Vedantam, Sailaja
Gustafsson, Stefan
Pers, Tune H.
Baron, John A.
Bezieau, Stephane
Kuery, Sebastien
Ogino, Shuji
Berndt, Sonja I
Casey, Graham
Haile, Robert W
Du, Mengmeng
Harrison, Tabitha A
Thornquist, Mark
Duggan, David J.
Le Marchand, Loic
Lemire, Mathieu
Lindor, Noralane M
Seminara, Daniela
Song, Mingyang
Thibodeau, Stephen N
Cotterchio, Michelle
Win, Aung Ko
Jenkins, Mark A
Hopper, John L
Ulrich, Cornelia M
Potter, John D
Newcomb, Polly A
Schoen, Robert E
Hoffmeister, Michael
Brenner, Hermann
White, Emily
Hsu, Li
Campbell, Peter T
Title Mendelian randomization study of height and risk of colorectal cancer
Journal name International Journal of Epidemiology   Check publisher's open access policy
ISSN 1464-3685
Publication date 2015-05-20
Year available 2015
Sub-type Article (original research)
DOI 10.1093/ije/dyv082
Volume 44
Issue 2
Start page 662
End page 672
Total pages 11
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Collection year 2016
Language eng
Formatted abstract
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.
Keyword Body height
Colorectal cancer
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
Official 2016 Collection
UQ Diamantina Institute Publications
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 8 times in Scopus Article | Citations
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