Incidences of ABO Incompatibility on the Reproductive Performance of SABARA Tribe,Dashpur,Odisha

Abstract

This paper reports ABO and Rh (D) incompatibilities among 219 individuals of Sahara tribe of Daspur Village of Khurda District in Odisha. 87 individuals of this sample belong to parental generation while the rest 132 belong to filial generation. Only 26 of the 45 couples are found to be incompatible for the ABO system. Neither the couples nor their offspring is found to be Rh (D)-ve. Prenatal deaths due to ABO incompatibility are higher among the compatible couples (0.36 % per couple) than in the incompatibles (0.11 % per couple). In terms of post-natal deaths, the trend is reversed, higher frequency in incompatible couples (0.88% per couple) than compatibles (0.57% per couple). Similarly, higher frequencies of living children are observed among the incompatible couples (3.03% per couple) than the compatibles (2.78%). Segregation distortion of blood group alleles due to foetal-maternal incompatibility could not be established in the male and female children. The O, A, B, and AB blood group percentages are 14.94 percent, 24.13 percent, 45.98 percent and 14.94 percent respectively in parental generation. Their allelic frequencies are 0.24, 0.40, and 0.38 in parental generation and 0.19, 0.35, and 0.46 in filial generation.