Inbred
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Consanguineous marriages which have been practiced throughout history continue to be practiced within different ethnic, religious and social groups to varying degrees with highest prevalences in North Africa, Middle East and central and south Asia. In the Gaza Strip of Palestine, little is known about the consanguinity profile, so the present large-scale study aims to explore the consanguinity profile of two generations using data from the β-thalassemia premarital screening program. Sociodemographic data analysis included 156,635 (141,200 males and 15,435 females) persons and their parents, representing 141,200 couples who were referred to the Thalassemia and Hemophilia Center for premarital testing.
https://mankindquarterly.org/archive/issue/56-1/7
The Standard Progressive Matrices (SPM) was standardized in the Gaza Strip in 2012-13 on a sample of 1677 boys and 1818 girls aged 8 to 18 years. The sample obtained a British IQ of 67.9.
