Theses are odds ratios, not relative risks.
Guys with older brothers are about 47% more likely to be gay. New meta-analysis of 26 studies (about 20,000 subjects)https://twitter.com/KirkegaardEmil/status/926673543349366785 …
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Could this have to do anything with the principle of divergence?http://www.npr.org/2010/11/18/131424595/siblings-share-genes-but-rarely-personalities …
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Also the more older brothers, the higher likelihood. Maternal hormones to fight in vitro testosterone suppress hetero inclination.
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@KirkegaardEmil I tried the equation but I get divide-by-0 and 0-divided-by. I'm gay. My older bro is not. No other siblings.Thanks. Twitter will use this to make your timeline better. UndoUndo
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So there should be few gays in China since by law, there are no younger brothers.
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i thought it was only single boy children with domineering jewish mothers.
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