Baiochi Eduardo, Camano Luiz, Sass Nelson, Colas Osmar Ribeiro
Escola Paulista de Medicina, Universidade Federal de São Paulo, and Hospital Municipal, Brazil.
Rev Assoc Med Bras (1992). 2007 Jan-Feb;53(1):44-6. doi: 10.1590/s0104-42302007000100018.
This study aimed to assess the frequency of different blood phenotypes and to predict the risk of Rh D alloimmunization and maternal-fetal incompatibility in a Brazilian population living in the West zone of the city of São Paulo-Brazil.
This descriptive study evaluated 2,372 post-delivery women and their liveborn during one year. Blood types were analyzed by means of tube agglutination tests.
The blood type frequencies were: 50.67 O, 32.17 A, 13.45 B, 3.75 AB, 90.34 Rh D(+) and 9.66 Rh D(-). ABO maternal-fetal incompatibility was detected in 18.4% and Rh D incompatibility in 7%.
The fraction of Rh D(-) population at high risk for Rh D alloimmunization was 82%, emphasizing the importance of Rh D alloimmunization profilaxis.
本研究旨在评估巴西圣保罗市西区人群中不同血型的频率，并预测Rh D同种免疫和母胎血型不合的风险。
这项描述性研究在一年内评估了2372名产后妇女及其活产婴儿。通过试管凝集试验分析血型。
血型频率为：O型50.67%，A型32.17%，B型13.45%，AB型3.75%，Rh D阳性90.34%，Rh D阴性9.66%。检测到ABO母胎血型不合的比例为18.4%，Rh D血型不合的比例为7%。
Rh D阴性人群中发生Rh D同种免疫的高风险比例为82%，强调了Rh D同种免疫预防的重要性。
