Based on some reviewer comments & interactions on here, I’m starting to think many people who work with data don’t actually understand what restriction is for. Question*: If you have confounding, but then restrict your data to one value of your confounder variable will you…
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...there's a big confounder here - giving birth! Most women with gestational diabetes are hospitalized for their labour, rarely before. So, if you restrict the analysis to only women giving birth, the impact of gestational diabetes is significantly attenuated (still there)
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Also worth noting that in this context an unrestricted analysis doesn't actually give you much more power to examine the question (because most GDM admissions are for labour) and potentially leaves you with an unreliable result
End of conversation
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