Sickle cell disease affects millions of people worldwide. It affects over 70,000 people in the U.S.
- Is most common among people of African descent. 1 in every 12 African Americans has the trait. 1 in every 400 has sickle cell disease.
- It also affects people from Spanish speaking regions (South and Central America, Cuba). 1 in every 100 Hispanics has the trait. 1 in every 1000 Hispanics has sickle cell disease.
- It also affects people from another regions; India, Saudi Arabia and the Mediterranean (Italy, Greece, Turkey).