3 ms·

Did the study not control for confounding factors?

• alsobrsp 3y ago
  It did, they state that right in the summary.
  • hn_throwaway_99 3y ago
    But they don't necessarily say what those confounding factors are in the abstract (I'm assuming they do in the full paper but I don't have access). It's easy for me to imagine tons of confounding factors that are associated with vitamin supplementation, e.g. wealth (wealth is associated with better health outcomes nearly everywhere you look), diet in general, exercise levels, etc. I highly doubt they accounted for all of these.
    • hombre_fatal 3y ago
      Then the confidence levels would blow up.