They’re correlational, though the broad cohorts help—not sure what you can do beyond just canvassing an entire birth cohort and noticing differences. There are possible pitfalls like the decision to induct early being made by people with genes that predict bad outcomes? But I really don’t think that’s major.
Not sure if I missed something because I read quickly, but: all these are purely correlational studies, without causal inference, right?
They’re correlational, though the broad cohorts help—not sure what you can do beyond just canvassing an entire birth cohort and noticing differences. There are possible pitfalls like the decision to induct early being made by people with genes that predict bad outcomes? But I really don’t think that’s major.