The average of posterior probabilities among the 5 smallest P-values, i.e., the false discovery rate (FDR) among the 5 smallest P-values.

Table entries W/X/Y/Z give the true probability (W), followed by the estimated probabilities using the integration method (X); the discretization method (Y); the distribution mean method (Z). Sample sizes (n1, n2: number of cases, controls in allele counts): n1 + n2 = 800.