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| Home > Publications database > Alcohol consumption, polygenic risk score, and early- and late-onset colorectal cancer risk. |
| Home > Publications database > Alcohol consumption, polygenic risk score, and early- and late-onset colorectal cancer risk. |
| Journal Article | DKFZ-2022-01358 |
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2022
Elsevier
Amsterdam
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Please use a persistent id in citations: doi:10.1016/j.eclinm.2022.101460
Abstract: 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).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 [odds ratio (OR) 1·8, 95% confidence interval (CI) 1·2-2·8] than with LOCRC risk (OR 1·3, 95% CI 1·1-1·4) (P-value for interaction with age =0·011). 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 (GRE 47, 95% CI 12-82), stronger than the impact on LOCRC (GRE 18, 95% CI 8-29).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.The first author (X.C.) was supported by the Guangzhou Elite Project (GEP). The DACHS study was supported by grants from the German Research Council (BR 1704/6-1, BR1704/6-3, BR 1704/6-4, BR 1704/6-6, CH 117/1-1, BR 1704/17-1, HO 5117/2-1) and the German Federal Ministry of Education and Research (01KH0404, 01ER0814, 01ER0815, 01GL1712).
Keyword(s): Alcohol consumption ; CI, confidence interval ; CRC, colorectal cancer ; DACHS, Darmkrebs: Chancen der Verhütung durch Screening ; EOCRC, early-onset colorectal cancer ; Early-onset colorectal cancer ; GRE, genetic risk equivalent ; GWAS, genome-wide association study ; Genetic risk equivalentt ; LOCRC, late-onset colorectal cancer ; Late-onset colorectal cancer ; NSAID, non-steroidal anti-inflammatory drug ; OR, odds ratio ; PRS, polygenic risk score ; Polygenic risk score ; SNP, single nucleotide polymorphisms
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