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The Accuracy of Blood Grouping of Cord Blood Specimens with Special Reference to the MN System
Author(s) -
Reed T. E.,
Milkovich Lucille
Publication year - 1968
Publication title -
vox sanguinis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.68
H-Index - 83
eISSN - 1423-0410
pISSN - 0042-9007
DOI - 10.1111/j.1423-0410.1968.tb01698.x
Subject(s) - cord blood , abo blood group system , blood grouping , cord , medicine , obstetrics , surgery , immunology
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 Lu a grouping. In Caucasians, but not in Negroes, cord blood grouping appeared to produce an excess of MN and Ss phenotypes.