From: Towards practical privacy-preserving genome-wide association study
phenotype
¬phenotype
genotype
O 1,1
O 1,2
RT1 = O1,1+O1,2
¬genotype
O 2,1
O 2,2
RT2 = O2,1+O2,2
CT1 = O1,1 + O2,1
CT2 = O1,2 + O2,2
N = CT1 + CT2 = RT1 + RT2