Evidence map›Paper›PMID 17112381›Full record

ArticleBMC genetics2006

Volume measures for linkage disequilibrium.

Yuguo Chen, Chia-Ho Lin, Chiara Sabatti

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in BMC genetics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–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

9 citing papers in PubMed.

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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

3 authors.

Yuguo ChenDepartment of Statistics, University of Illinois at Urbana-Champaign, Champaign IL 61820, USA. yuguo@uiuc.edu <yuguo@uiuc.edu>
Chia-Ho Lin
Chiara Sabatti

Funding

STATISTICAL METHODS FOR GENE MAPPINGR01GM053275 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LANGE, KENNETH L · 1995 to 2019
$9.3M
POPULATION GENETIC MAPPING OF TOURETTE SYNDROMER01NS037484 · NINDS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI FREIMER, NELSON B. · 1998 to 2009
$4.0M
GENETIC &EPIDEMIOLOGIC STUDIES OF BIPOLAR DISORDERR01MH049499 · NIMH · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI FREIMER, NELSON B · 1992 to 2006
$2.9M
NIGMS NIH HHS GM53275NIGMS NIH HHS R01 GM053275NIMH NIH HHS R01 MH049499NIMH NIH HHS R01MH049499NINDS NIH HHS R01 NS037484NINDS NIH HHS R01NS037484PHS HHS DMS0239427
6 · The paper itself

Abstract

backgroundDefining measures of linkage disequilibrium (LD) that have good small sample properties and are applicable to multiallelic markers poses some challenges. The potential of volume measures in this context has been noted before, but their use has been hampered by computational challenges.

resultsWe design a sequential importance sampling algorithm to evaluate volume measures on I x J tables. The algorithm is implemented in a C routine as a complement to exhaustive enumeration. We make the C code available as open source. We achieve fast and accurate evaluation of volume measures in two dimensional tables.

conclusionApplying our code to simulated and real datasets reinforces the belief that volume measures are a very useful tool for LD evaluation: they are not inflated in small samples, their definition encompasses multiallelic markers, and they can be computed with appreciable speed.

Indexed as

AlgorithmsLinkage DisequilibriumAllelesChromosome MappingChromosomes, Human, Pair 22Computer SimulationGenetic MarkersGenetics, PopulationHumansSample SizeGenetic Markers

Identifiers

PMID17112381
PMCPMC1665459

What OpenQuestion holds

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Registered trials

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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.