Evidence map›Paper›PMID 9042929›Full record

ArticleAmerican journal of human genetics1997

Transmission-disequilibrium tests for quantitative traits.

D B Allison

Erratum issuedAbstract read
In one paragraph

Article in American journal of human genetics, 1997. 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 111 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
111citing 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

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

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Causal interpretations of family GWAS in the presence of heterogeneous effects.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. How do stochastic processes and genetic threshold effects explain incomplete penetrance and inform causal disease mechanisms?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
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  9. Article
  10. Article
  11. Article
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  13. Causal inference in genetic trio studies.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. Article
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  17. Polymorphisms in Wnt signaling pathway genes are associated with peak bone mineral density, lean mass, and fat mass in Chinese male nuclear families.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Article
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  19. Article
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author.

D B AllisonObesity Research Center, Columbia University College of Physicians and Surgeons, New York, NY 10025, USA. dba8@columbia.edu

Funding

RESEARCH TRAININGP30DK026687 · NIDDK · ST. LUKE'S-ROOSEVELT INST FOR HLTH SCIS · PI Anthony W Ferrante, DYMPNA GALLAGHER · 1986 to 2026
$33.0M
QUANTITATIVE SYNTHESIS OF CLINICAL OBESITY RESEARCHR01DK051716 · NIDDK · ST. LUKE'S-ROOSEVELT INST FOR HLTH SCIS · PI ALLISON, DAVID B · 1996 to 1999
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GENETICS OF OBESITY AND RELATED RISKS AMONG BLACK WOMENR29DK047256 · NIDDK · ST. LUKE'S-ROOSEVELT INST FOR HLTH SCIS · PI ALLISON, DAVID B · 1994 to 1998
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NIDDK NIH HHS P30DK26687NIDDK NIH HHS R01DK51716NIDDK NIH HHS R29DK47256
6 · The paper itself

Abstract

The transmission-disequilibrium test (TDT) of Spielman et al. is a family-based linkage-disequilibrium test that offers a powerful way to test for linkage between alleles and phenotypes that is either causal (i.e., the marker locus is the disease/trait allele) or due to linkage disequilibrium. The TDT is equivalent to a randomized experiment and, therefore, is resistant to confounding. When the marker is extremely close to the disease locus or is the disease locus itself, tests such as the TDT can be far more powerful than conventional linkage tests. To date, the TDT and most other family-based association tests have been applied only to dichotomous traits. This paper develops five TDT-type tests for use with quantitative traits. These tests accommodate either unselected sampling or sampling based on selection of phenotypically extreme offspring. Power calculations are provided and show that, when a candidate gene is available (1) these TDT-type tests are at least an order of magnitude more efficient than two common sib-pair tests of linkage; (2) extreme sampling results in substantial increases in power; and (3) if the most extreme 20% of the phenotypic distribution is selectively sampled, across a wide variety of plausible genetic models, quantitative-trait loci explaining as little as 5% of the phenotypic variation can be detected at the .0001 alpha level with <300 observations.

Indexed as

Genetics, MedicalLinkage DisequilibriumGenetic MarkersGenetic TechniquesGenomeHumansModels, GeneticModels, StatisticalGenetic Markers

Identifiers

PMID9042929
PMCPMC1712500

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.