User Poll
Do first-cousin marriages lead to more birth defects?
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- Posted: skeptive on Mar 10, 2011
- Last Activity: rhalbachwerne on Feb 23, 2012
- Views: 175 times
Do first-cousin marriages lead to more birth defects?
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Yes
Wikipedia (1 statement)
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straightdope.com (1 statement)
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No
toptenz.net (1 statement)
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Yes
Wikipedia
Cousin marriage - Wikipedia, the free encyclopedia
The children of first-cousin marriages have an increased risk of genetic disorders, though some scientists contend this is relatively small.
straightdope.com
The Straight Dope: What's wrong with cousins marrying?
A recent review (Bennett et al, Journal of Genetic Counseling, 2002) says that, on average, offspring of first-cousin unions have a 2 to 3 percent greater risk of birth defects than the general population, and a little over 4 percent greater risk of early death.
No
toptenz.net
Top 10 Myths About Sex | Top 10 Lists | TopTenz.net
A 30-year Western Australian study, looked at cultures who regularly practice first cousin marriages and found no abnormalities in their offspring beyond that of what would be expected from any other traditional, unrelated couple.