Haptoglobin polymorphism in Egyptians

In 505 random serum samples from unrelated healthy genuine Egyptians, haptoglobin 2-2 phenotypes were most prevalent, though statistically were as common as haptoglobin 2-1 phenotypes. High inbreeding with average inbreeding coefficient of 0.0145 explains the deviation of Egyptian haptoglobin phenotypes from the Hardy-Weinberg equilibrium.