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Combine the polygenic scores in the individuals

Hi,

I generated Polygenic scores (PGS) of several individuals using the plink software. Is there any way to combine all the polygenic scores in the individuals?

Thank you

snp

Why? Are we trying to compare populations?

Yes, we are trying to compare populations

Maybe compare distributions instead?

Distributions means? I have SCORESUM (polygenic score values) and i have to test for phenotype enrichment against my phenotype file. How should i do it? Thanks in advance

Perform a standard regression between the phenotype and the SCORESUM, and adjust for any covariates.

Keep in mind that 'polygenic risk score' is a general term and that there are so many ways to derive these. Most methods start from the beta coefficient from the regression fit, i.e., between phenotype ~ SNP

Thank you everyone for your valuable responses. Will try it out on the data.

1 answer

Maybe you can try out dedicated PRS softwares such as PRSice, lassosum or LDpred

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