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Family‐based tests for associating haplotypes with general phenotype data: Application to asthma genetics

Horvath, Steve, Xu, Xin, Lake, Stephen L., Silverman, Edwin K., Weiss, Scott T., Laird, Nan M.·2004·Genetic Epidemiology

Abstract

We provide a general purpose family‐based testing strategy for associating disease phenotypes with haplotypes when phase may be ambiguous and parental genotype data may be missing. These tests for linkage and association can be used in candidate gene studies with tightly linked markers. Our proposed weighted conditional approach extends the method described in Rabinowitz and Laird [Human Heredity 504:227–233, 2000] to multiple markers. It is attractive because it provides haplotype tests for family‐based studies that are efficient and robust to population admixture, phenotype distribution specification, and ascertainment based on phenotypes. It can handle missing parental genotypes and/or missing phase in both offspring and parents. It yields either haplotype‐specific (univariate) tests or multi‐haplotype (global) tests. This extension has been implemented in the freely available software haplotype FBAT. We used the haplotype FBAT program to test for associations between asthma phenotypes and single nucleotide polymorphisms (SNPs) in the beta‐2 adrenergic receptor gene. Whereas no single SNP showed significant association with asthma diagnosis or bronchodilator responsiveness (quantitative trait), a haplotype‐based global test found a highly significant association with asthma diagnosis (P value <0.00005) and the measure of bronchodilator responsiveness (P value =0.016). Genet Epidemiol 26:61–69, 2004. © 2003 Wiley‐Liss, Inc.

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Metadata

Authors
Horvath, S., Xu, X., Lake, S. L., Silverman, E. K., Weiss, S. T., & Laird, N. M.
Venue
Genetic Epidemiology
Publisher
Wiley
Published
2003-12-16
Volume
26
Issue
1
Pages
61-69
ISSN
  • 0741-0395 (ISSN-L)
  • 1098-2272
OpenAlex
W2098611654
Cited by
391
References
24
FWCI
21.43
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Family‐based tests for associating haplotypes with general phenotype data: Application to asthma genetics. https://app.cochat.ai/papers/10.1002/gepi.10295
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Horvath, S., Xu, X., Lake, S. L., Silverman, E. K., Weiss, S. T., & Laird, N. M. (2004). Family‐based tests for associating haplotypes with general phenotype data: Application to asthma genetics. Genetic Epidemiology. https://doi.org/10.1002/gepi.10295

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