Evidence map›Paper›PMID 19219893›Full record

ArticleGenetic epidemiology2009

On the adjustment for covariates in genetic association analysis: a novel, simple principle to infer direct causal effects.

Stijn Vansteelandt, Sylvie Goetgeluk, Sharon Lutz, Irwin Waldman, Helen Lyon, Eric E Schadt, Scott T Weiss, Christoph Lange

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In one paragraph

Article in Genetic epidemiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 2 countries.

Stijn VansteelandtDepartment of Applied Mathematics and Computer Sciences, Ghent University, Belgium.
Sylvie Goetgeluk
Sharon Lutz
Irwin Waldman
Helen Lyon
Eric E Schadt
Scott T Weiss
Christoph Lange
Harvard University · USGhent University · BEBoston Children's Museum · USEmory University · USRosetta Stone (United States) · US

Funding

GRADUATE TRAINING IN BIOSTATISTICST32ES007142 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI Brent Andrew Coull · 1985 to 2026
$11.9M
NIEHS NIH HHS T32 ES007142
6 · The paper itself

Abstract

In genetic association studies, different complex phenotypes are often associated with the same marker. Such associations can be indicative of pleiotropy (i.e. common genetic causes), of indirect genetic effects via one of these phenotypes, or can be solely attributable to non-genetic/environmental links between the traits. To identify the phenotypes with the inducing genetic association, statistical methodology is needed that is able to distinguish between the different causes of the genetic associations. Here, we propose a simple, general adjustment principle that can be incorporated into many standard genetic association tests which are then able to infer whether an SNP has a direct biological influence on a given trait other than through the SNP's influence on another correlated phenotype. Using simulation studies, we show that, in the presence of a non-marker related link between phenotypes, standard association tests without the proposed adjustment can be biased. In contrast to that, the proposed methodology remains unbiased. Its achieved power levels are identical to those of standard adjustment methods, making the adjustment principle universally applicable in genetic association studies. The principle is illustrated by an application to three genome-wide association analyses.

Indexed as

Genome-Wide Association StudyPolymorphism, Single NucleotideCohort StudiesComputer SimulationGene FrequencyGenetic Predisposition to DiseaseGenetic VariationGenome, HumanGenotypeHeart DiseasesHumansModels, GeneticModels, StatisticalPhenotypeResearch Design

Identifiers

PMID19219893
PMCPMC5621606
OpenAlexW1990169375

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.