Genome-wide association studies (GWAS) for ordered categorical phenotypes
Author OpenMendel
14 Stars
Updated Last
1 Year Ago
Started In
April 2018


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OrdinalGWAS.jl is a Julia package for performing genome-wide association studies (GWAS) for ordered categorical phenotypes. It is useful when the phenotype takes ordered discrete values, e.g., disease status (undiagnosed, pre-disease, mild, moderate, severe). It runs efficiently and scales well to very large datasets. The package currently supports PLINK, VCF (both dosage and genotype data) file formats, and BGEN file formats. We plan to add PGEN support in the future.

OrdinalGWAS.jl supports Julia v1.6 or later. See the documentation for usage.

OrdinalGWAS.jl needs the following steps to install.

using Pkg
pkg"add OrdinalGWAS"


The methods and applications of this software package are detailed in the following publication:

German CA, Sinsheimer JS, Klimentidis YC, Zhou H, Zhou JJ. Ordered multinomial regression for genetic association analysis of ordinal phenotypes at Biobank scale. Genet Epidemiol. 2020 Apr;44(3):248-260. doi: 10.1002/gepi.22276. Epub 2019 Dec 26. PMID: 31879980; PMCID: PMC8256450.

If you use OpenMendel analysis packages in your research, please cite the following reference in the resulting publications:

Zhou H, Sinsheimer JS, Bates DM, Chu BB, German CA, Ji SS, Keys KL, Kim J, Ko S, Mosher GD, Papp JC, Sobel EM, Zhai J, Zhou JJ, Lange K. OPENMENDEL: a cooperative programming project for statistical genetics. Hum Genet. 2020 Jan;139(1):61-71. doi: 10.1007/s00439-019-02001-z. Epub 2019 Mar 26. PMID: 30915546; PMCID: PMC6763373.


This project has been supported by the National Institutes of Health under awards R01GM053275, R01HG006139, R25GM103774, and 1R25HG011845.