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Chris67's avatar

https://pubmed.ncbi.nlm.nih.gov/37198491/#&gid=article-figures&pid=extended-data-fig-8-uid-12

This type of analysis was already done(specifically for years of education). There was a different impact, with PGS scores going up as a function of genetic distance, and EA going down(also found for height btw). Especially with the finding of ~0 relative predictive validity for africans in the UK(unless the Hou et al. 2023 approach is used for EA and shows significant validity), i don't know if these results are too informative(also do you think africans have 10x rates of schizophrenia compared to the difference between europeans with schizophrenia and controls,(pfiffer 2023 found the same results) or like a 5sd difference in HRS(https://journals.lww.com/psychgenetics/FullText/2018/10000/Polygenic_risk_score_for_schizophrenia_is_more.2.aspx & https://wyclif.substack.com/p/schizophrenia-a-coda). Still think we need better polygenic scores without this bias, or a local admixture/sibling admixture study to be more informative about causes. I took a brief look, and apparently it's like 3x higher in the UK, and roughly the same in the US(psychotic disorder: ethnicity facts and figures, Fearon et al 2006, Schwartz and Blackenship 2014). But it seems unless there's a way of adjusting for this non-linear LD bias(the method mentioned in pffifer 2023 seems promising but wasn't persued further, and shows significant european bias for EA in almost every comparison(from 10d to 2d for one EUR-AFR comparison) I don't think this grouped polygenic score method will prove much.

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Henning Just's avatar

I have a question: Being absolutely a layman here, has there been similar research into the correlation between IQ (or similar) and family structure? As is, does single-parenting have an effect? Does multigenerational cooperation in upbringing have an effect? Etc.

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