Evidence map›Paper›PMID 21133882›Full record

ArticleBiometrics2011

Control of population stratification by correlation-selected principal components.

Seunggeun Lee, Fred A Wright, Fei Zou

Abstract read
In one paragraph

Article in Biometrics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
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  7. Article
  8. Article
  9. Rare Coding Variants Associated with Breast Cancer.Advances in experimental medicine and biology · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Set-Based Tests for the Gene-Environment Interaction in Longitudinal Studies.Journal of the American Statistical Association · 2017
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Empirical pathway analysis, without permutation.Biostatistics (Oxford, England) · 2013
    Article
  20. Article
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

3 authors.

Seunggeun LeeDepartment of Biostatistics, University of North Carolina, Chapel Hill, North Carolina 27599, USA. slee@bios.unc.edu
Fred A Wright
Fei Zou

Funding

UNC-CH CENTER FOR ENVIRONMENTAL HEALTH &SUSCEPTIBILITYP30ES010126 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Hazel B Nichols · 2001 to 2026
$36.3M
STATISTICAL METHODS IN CURRENT CANCER RESEARCHR01CA082659 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LIN, DANYU · 2000 to 2016
$3.7M
Robust Methods for Complex Trait Mapping with Collaborative CrossR01GM074175 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ZOU, FEI · 2006 to 2014
$1.7M
Replication of Schizophrenia Associations in CATIER01MH074027 · NIMH · UNIV OF NORTH CAROLINA CHAPEL HILL · PI SULLIVAN, PATRICK F · 2006 to 2007
$715k
Pop-Track NIMHZ01MH900001 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI POP-TRACK, IC · 2002 to 2003
–
NCI NIH HHS R01 CA082659NIEHS NIH HHS P30 ES010126NIGMS NIH HHS R01 GM074175NIGMS NIH HHS R01GM074175NIMH NIH HHS MH074027NIMH NIH HHS N01MH900001NIMH NIH HHS R01 MH074027
6 · The paper itself

Abstract

In genome-wide association studies, population stratification is recognized as producing inflated type I error due to the inflation of test statistics. Principal component-based methods applied to genotypes provide information about population structure, and have been widely used to control for stratification. Here we explore the precise relationship between genotype principal components and inflation of association test statistics, thereby drawing a connection between principal component-based stratification control and the alternative approach of genomic control. Our results provide an inherent justification for the use of principal components, but call into question the popular practice of selecting principal components based on significance of eigenvalues alone. We propose a new approach, called EigenCorr, which selects principal components based on both their eigenvalues and their correlation with the (disease) phenotype. Our approach tends to select fewer principal components for stratification control than does testing of eigenvalues alone, providing substantial computational savings and improvements in power. Analyses of simulated and real data demonstrate the usefulness of the proposed approach.

Indexed as

Genome-Wide Association StudyPrincipal Component AnalysisGenetics, PopulationGenotypeHumansPopulation Groups

Identifiers

PMID21133882
PMCPMC3117098

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

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 Socratic graph.