Evidence map›Paper›PMID 10762547›Full record

ArticleAmerican journal of human genetics2000

Power of linkage versus association analysis of quantitative traits, by use of variance-components models, for sibship data.

P C Sham, S S Cherny, S Purcell, J K Hewitt

Erratum issuedAbstract read
In one paragraph

Article in American journal of human genetics, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 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

84 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Integrating Family-Based and Mendelian Randomization Designs.Cold Spring Harbor perspectives in medicine · 2021
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Genetic Influences on Evening Preference Overlap with Those for Bipolar Disorder in a Sample of Mexican Americans and American Indians.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2017
    Article
  19. Article
  20. Genome-Wide Association Study of Post-Traumatic Stress Disorder in Two High-Risk Populations.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2017
    Article

24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

P C ShamSocial, Genetic and Developmental Psychiatry Research Centre, Institute of Psychiatry, London SE5 8AF, United Kingdom. spjupcs@iop.kcl.ac.uk.
S S Cherny
S Purcell
J K Hewitt

Funding

VARIANCE COMPONENTS MODELS FOR MAPPING QTLSR01EY012562 · NEI · UNIVERSITY OF COLORADO AT BOULDER · PI HEWITT, JOHN K · 1999 to 2006
$2.1M
GENES FOR ETOH SENSITIVITY IN THE RAT--QTL ANALYSISR37AA010556 · NIAAA · UNIVERSITY OF COLORADO DENVER · PI DEITRICH, RICHARD A · 1996 to 2003
$879k
GENES FOR ETOH SENSITIVITY IN THE RAT--QTL ANALYSISR01AA010556 · NIAAA · UNIVERSITY OF COLORADO DENVER · PI DEITRICH, RICHARD A · 1996 to 1996
–
NEI NIH HHS EY12562NIAAA NIH HHS AA07330NIAAA NIH HHS AA10556
6 · The paper itself

Abstract

Optimal design of quantitative-trait loci (QTL) mapping studies requires a precise understanding of the power of QTL linkage versus QTL association analysis, under a range of different conditions. In this article, we investigate the power of QTL linkage and association analyses for simple random sibship samples, under the variance-components model proposed by Fulker et al. After a brief description of an extension of this variance-components model, we show that the powers of both linkage and association analyses are crucially dependent on the proportion of phenotypic variance attributable to the QTL. The main difference between the two tests is that, whereas the power of association is directly related to the QTL heritability, the power of linkage is related more closely to the square of the QTL heritability. We also describe both how the power of linkage is attenuated by incomplete linkage and incomplete marker information and how the power of association is attenuated by incomplete linkage disequilibrium.

Indexed as

Models, GeneticNuclear FamilyQuantitative Trait, HeritableChi-Square DistributionChromosome MappingComputer SimulationGene FrequencyGenetic MarkersGenetic VariationGenotypeHaplotypesHumansLikelihood FunctionsLinkage DisequilibriumLod ScoreMatched-Pair AnalysisGenetic Markers

Identifiers

PMID10762547
PMCPMC1378020

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.