Zhang M, Feng R, Chen X, Hu B, Zhang H. LOT: a tool for linkage analysis of ordinal traits for pedigree data.
Bioinformatics 2008;
24:1737-9. [PMID:
18535081 DOI:
10.1093/bioinformatics/btn258]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
SUMMARY
Existing linkage-analysis methods address binary or quantitative traits. However, many complex diseases and human conditions, particularly behavioral disorders, are rated on ordinal scales. Herein, we introduce, LOT, a tool that performs linkage analysis of ordinal traits for pedigree data. It implements a latent-variable proportional-odds logistic model that relates inheritance patterns to the distribution of the ordinal trait. The likelihood-ratio test is used for testing evidence of linkage.
AVAILABILITY
The LOT program is available for download at http://c2s2.yale.edu/software/LOT/
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