Article
Principled measures and estimates of trait polygenicity.
American journal of human genetics - 4 Jun 2026
O'Connor Luke J, Sella Guy
Abstract excerpt
While quantitative and statistical genetic studies often invoke the "polygenicity" of traits and sometimes quantify it, the meaning of the term is not always clear. We propose a principled definition of polygenicity that encompasses a range of measures. We show that these measures satisfy mathematical properties that are sensible and, conversely, that measures that satisfy these properties meet our definition. We...
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