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本文测定了３０２例Ｏ型足月孕妇的血清ＩｇＧ抗体效价及其新生儿血型、体重、血红蛋白、红细胞、血清胆红素。将３０２对母儿分为ＡＢＯ血型不合与相合二组。统计结果表明，两组的孕妇血清ＩｇＧ抗体效价无明显差别（Ｐ＞０．０５）。两组的新生儿体重、血红蛋白、红细胞、血清胆红素亦无明显差别（Ｐ＞０．０５），血清胆红素与孕妇抗体效价无明显相关（ｒ＝０．０７８５，Ｐ＞０．０５）。另外测定了４０例１６－３６孕周的Ｏ型孕妇血清ＩｇＧ抗体效价及其胎儿血型。资料显示，仅根据孕妇血清ＩｇＧ抗体效价不能诊断ＡＢＯ血型不合及预测ＡＢＯ溶血病，产前测定胎儿血型具有重要价值。
In this paper, the serum IgG titer of 302 O-term pregnant women and their neonatal blood type, body weight, hemoglobin, erythrocytes and serum bilirubin were measured. 302 pairs of mother and child were divided into ABO blood group incompatibility and consistency of the two groups. The statistical results showed that there was no significant difference in IgG antibody titers between the two groups (P> 0.05). There were no significant differences in body weight, hemoglobin, erythrocytes and serum bilirubin between the two groups (P> 0.05). There was no significant correlation between serum bilirubin and antibody titer of pregnant women (r = 0.0785, P> 0). 05). In addition, 40 cases of 16-36 gestational weeks of pregnant women with O-type IgG serum antibody titer and fetal blood group. Data show that only based on pregnant women serum IgG antibody titers can not diagnose ABO blood group incompatibility and predict ABO hemolytic disease, prenatal determination of fetal blood type has important value.