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Table 2 Frequency distribution of consanguinity over three generations

From: Study of the impact of consanguinity on abortion and mortality in the population of Beni Abbes (southwestern Algeria)

Generation Type of wedding
Consanguineous Total Non-consanguineous
1st cousin 2nd cousin   
Couples 67.35% 32.65% 55.06% 44.94%
Parents 52.08% 47.92% 53.93% 46.07%
Grandparents 62.85% 37.15% 39.33% 60.67%