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GWAS Study

The influence of regression models on genome-wide association studies of alcohol dependence: a comparison of binary and quantitative analyses.

Li W, Thygesen JH, O'Brien NL et al.

33290381 PubMed ID
GWAS Study Type
1990 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

LW
Li W
TJ
Thygesen JH
ON
O'Brien NL
HM
Heydtmann M
SI
Smith I
DF
Degenhardt F
NM
Nöthen MM
MM
Morgan MY
BN
Bass NJ
MA
McQuillin A
Chapter II

Abstract

Summary of the research findings

Introduction: Genome-wide association studies (GWAS) of alcohol dependence syndrome (ADS) offer a platform to detect genetic risk loci. However, the majority of the ADS GWAS undertaken, to date, have utilized a case-control design and have failed to identify consistently replicable loci with the exception of protective variants within the alcohol metabolizing genes, notably ADH1B. The ADS phenotype shows considerable variability which means that the use of quantitative variables as a proxy for the severity of ADS has the potential to facilitate identification of risk loci by increasing statistical power. The current study aims to examine the influences of using binary and adjusted quantitative measures of ADS on GWAS outcomes and on calculated polygenic risk scores (PRS).

739 European ancestry cases, 1,251 European ancestry controls

Chapter III

Study Statistics

Key metrics and study information

1990
Total Participants
GWAS
Study Type
No
Replicated
European
Ancestry
U.K.
Recruitment Country
Chapter IV

Analysis

Comprehensive review of health and genetic findings

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