That is a very thought provoking study...many curious findingshttps://twitter.com/kirkegaardemil/status/782233573927620608 …
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Odd finding with the lack of relationship between EA genetic scores and health outcomes. Fluke perhaps.
But, NZ has excellent widely-available health services. Also, cohort membership may have improved health literacy.
It's not a matter of health service or not. Health literacy is just normal IQ. http://www1.udel.edu/educ/gottfredson/reprints/2004fundamentalcause.pdf …
Another issue to consider - attrition in birth cohorts is non-random http://aje.oxfordjournals.org/content/early/2016/05/09/aje.kww009.full …
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