From: Characteristics of replicated single-nucleotide polymorphism genotypes from COGA: Affymetrix and Center for Inherited Disease Research
CIDR genotype
Probability Affymetrix is missing
AA
20,996/615,354 = 3.41%
AB
45,178/630,633 = 7.16%
BB
20,657/610,900 = 3.38%