Secretors of ABH antigen in a central Swedish population

SUMMARY An investigation has been carried out on the frequency of secretors and non‐secretors respectively in a central Swedish population. Out of 2093 individuals tested, 1631 proved to be secretors and 462 non‐secretors, corresponding to a frequency of the recessive se‐gene of 0.4698. The theoretical elimination frequency in paternity cases is shown to be 0.0286. Comparisons have been made with previously published population frequencies, by which a statistically significant difference was demonstrated between the population under investigation and a Danish population. The author expresses his thanks to med. and fil. kand. Lars Bjerkenstedt for collecting the samples, and med. and fil. kand. Ralph Posener for assistance in the routine serological work.