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Alcohol intake significantly tied with colorectal cancer risk: Study

Dr. Shravani DaliWritten by Dr. Shravani Dali Published On 2022-06-09T19:15:30+05:30  |  Updated On 2022-06-09T19:15:49+05:30
Alcohol intake significantly tied with colorectal cancer risk: Study
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Alcohol intake significantly influences colorectal cancer risk, according to a recent study published in the E Clinical Medicine. Evidence is lacking on the impact of alcohol consumption on colorectal cancer (CRC) risk (overall and by age at diagnosis) by polygenic risk score (PRS) levels, and it is unclear how the magnitude of CRC risk associated with alcohol consumption compares to...

Alcohol intake significantly influences colorectal cancer risk, according to a recent study published in the E Clinical Medicine.

Evidence is lacking on the impact of alcohol consumption on colorectal cancer (CRC) risk (overall and by age at diagnosis) by polygenic risk score (PRS) levels, and it is unclear how the magnitude of CRC risk associated with alcohol consumption compares to the magnitude of genetically determined risk.

Multiple logistic regression was used to assess the association between alcohol consumption and colorectal cancer (CRC) across PRS levels based on 140 CRC-related loci among 5104 CRC cases and 4131 controls from a large population-based case-control study. We compared the effects for alcohol consumption and PRS on CRC risk using the "Genetic Risk Equivalent (GRE)" for effective risk communication. Specific analyses were conducted for early-onset CRC (EOCRC, <55 years) and late-onset CRC (LOCRC, ≥55 years).

Findings:

  • High alcohol consumption, and to a lower extent, also alcohol abstinence were associated with increased CRC risk.
  • Compared to low alcohol consumption (0·1-<25 g/d), lifetime average alcohol consumption ≥25 g/d was more strongly associated with EOCRC
  • Interactions between alcohol consumption and PRS did not reach statistical significance for either EOCRC or LOCRC risk. The estimated impact of high lifetime alcohol consumption on EOCRC was equivalent to the effect of having 47 percentiles higher PRS, stronger than the impact on LOCRC

Thus, excessive alcohol use was strongly associated with EOCRC risk, independent of PRS levels. Abstaining from heavy drinking could reduce risk for CRC, in particular for EOCRC to an extent that would be equivalent to having a much lower genetically determined risk.

Reference:

Alcohol consumption, polygenic risk score, and early- and late-onset colorectal cancer risk by Xuechen Chen et al. published in the E Clinical Medicine.

DOI: https://doi.org/10.1016/j.eclinm.2022.101460

Keywords:

E Clinical Medicine, Alcohol intake, influences, colorectal cancer, risk, Xuechen Chen, Hengjing Li, Feng Guo, Michael Hoffmeister, Hermann Brenner


Alcohol consumption polygenic risk score EClinicalMedicine colorectal cancer risk 
Source : E Clinical Medicine
Dr. Shravani Dali
Dr. Shravani Dali

    BDS

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.

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