Abstract
Summary. The accuracy of cord blood grouping in the ABO, Rh, MNSs, Kell, Duffy, Lutheran, and P systems was tested in three ways (regression of length of gestation on phenotype frequency, comparison of cord blood grouping with grouping (of the same child) at five years of age, comparison of cord blood frequencies with frequencies in infants' mothers) using data on 7090 Caucasian infants, 2203 Negro infants, and over 400 individual comparisons of cord blood and five year groupings. In both Caucasians and Negroes a very high frequency of false negatives in cord blood grouping in the P system was found, as well as an appreciable, highly significant, occurrence of false negatives in Lua grouping. In Caucasians, but not in Negroes, cord blood grouping appeared to produce an excess of MN and Ss phenotypes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
