[1] Though these unions are still prevalent in some communities, as seen across the Greater Middle East region, many other populations have seen a great decline in intra-family marriages.
[2] Globally, 8.5% of children have consanguineous parents, and 20% of the human population live in communities practicing endogamy.
Upholding familial structure and assets, and ease of marital arrangements are valued among consanguineous marriages.
[4] Consanguinity is practiced regardless of religious influences and is a result of cultural, historical, regional, and socio-economic factors.
The first year holds the highest chance of death due to the risk of autosomal recessive genes.