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Who is affected by Rh sensitization during pregnancy

Who is affected by Rh sensitization during pregnancy

Overall, a minority of all people have Rh-negative blood. Gender does not affect your chance of having Rh-negative blood. However, the likelihood of being Rh-negative varies by racial and ethnic background.1

  • 30% of Basques have Rh-negative blood.
  • 15% of white Americans have Rh-negative blood.
  • 8% of African Americans and Hispanics from Mexico and Central America have Rh-negative blood.
  • Less than 1% of native peoples (such as Eskimos and Native Americans) and Asians (such as Japanese and Chinese) have Rh-negative blood.

Citations

  1. Moise KJ (2004). Hemolytic disease of the fetus and newborn. In RK Creasy, R Resnik, eds., Maternal-Fetal Medicine: Principles and Practice, 5th ed., pp. 537-561. Philadelphia: Saunders.

Author: Kathe Gallagher, MSW Last Updated: November 2, 2007
Medical Review: Joy Melnikow, MD, MPH - Family Medicine
Gregory A L Davies, MD, FRCSC, FACOG - Maternal-Fetal Medicine
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