In our country, only 0.24% of the Han people is RhD(-),and nearly 5% in the minority, these numbers are lesser than those 15% of the Caucasian, so most of the HDN is caused by ABO system.

• 在我国汉族人群 Rh(-)仅占 0.；24%25；少数民族 Rh(-)占人群比例 5%25以上；大大低于白种人的 15%25；因此；Rh血型不合引起的 HDN 相对 ABO 血型不合较为少见。