Genotype relative risk (source code)

= Genotype relative risk
{title2=$R_g=P(D\mid g)/P(D\mid g_0)$}

= Genotypic relative risk
{synonym}

The genotype relative risk compares the <penetrance> for <genotype> $g$ with that of a chosen baseline $g_0$. The common baseline factor cancels when computing <conditional probabilities> of transmitted genotypes given an affected offspring. It is a ratio of disease probabilities, unlike an <odds ratio>.