Plot of power for the adjusted test versus the unadjusted test at varying genetic risk levels

<p><b>Copyright information:</b></p><p>Taken from "Susceptibility scoring in family-based association testing"</p><p>http://www.biomedcentral.com/1471-2156/4/s1/S49</p><p>BMC Genetics 2003;4(Suppl 1):S49-S49.</p><p>Published online 31 Dec 2003</p><p>PMCID:PMC1866485.</p><p></p> The legend lists the odds of disease, given inheritance of the disease allele, for each risk cluster. Each of the nine covariate risk levels is represented within a single genetic risk cluster. There is a tendency for higher environmental risk to decrease the power within a genetic risk cluster (not shown)