Health Effects of Cousin Marriage: Evidence from US Genealogical Records
13 days ago
- #cousin marriage
- #genealogical records
- #life expectancy
- Cousin marriage rates remain high in many countries.
- First study to estimate the effect of cousin marriage on life expectancy throughout adulthood.
- Uses US genealogical records to compare offspring of first cousins versus non-cousin marriages.
- Findings show cousin marriage leads to a reduction of more than two years in age-five life expectancy.
- Compounds previously documented early-life mortality risks associated with cousin marriages.