Population and mother-child study of esterase D in Sweden

Esterase D (EsD) phenotypes were determined in 5,366 unrelated adult Swedes and in 2,066 mother-child pairs. The calculated allele frequencies were 0.894 for EsD1 and 0.106 for EsD2. One rare phenotype, EsD 3-1, was found: No mother-child exclusion was observed.