Mendelian randomization studies: a review of the approaches used and the quality of reporting
Author(s) -
Anna G. C. Boef,
Olaf M. Dekkers,
Saskia le Cessie
Publication year - 2015
Publication title -
international journal of epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.406
H-Index - 208
eISSN - 1464-3685
pISSN - 0300-5771
DOI - 10.1093/ije/dyv071
Subject(s) - mendelian randomization , proxy (statistics) , statistical power , confounding , checklist , meta analysis , research design , medline , population , medicine , statistics , clinical study design , study heterogeneity , instrumental variable , sample size determination , econometrics , clinical trial , psychology , genotype , pathology , biology , cognitive psychology , mathematics , genetics , genetic variants , environmental health , biochemistry , gene
Mendelian randomization (MR) studies investigate the effect of genetic variation in levels of an exposure on an outcome, thereby using genetic variation as an instrumental variable (IV). We provide a meta-epidemiological overview of the methodological approaches used in MR studies, and evaluate the discussion of MR assumptions and reporting of statistical methods.
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