Consanguineous marriages in Beirut: Time trends, spatial distribution

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Abstract
Twenty‐five per cent of all marriages are consanguineous in a population‐based sample of couples from Beirut. Marriages between distant relatives decline with time, while first‐cousin marriages remain relatively stable. Among first‐cousin marriages, the proportions of father's brother's daughter marriages (37 per cent) and of patrilateral unions (48 per cent) are particularly low. A spatial representation demonstrates an uneven distribution of consanguineous marriages, and an association of high levels of endogamy with Muslim religion, low educational level, and low occupational status.