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  "path": "/t/collider-in-rct-subgroup-analysis/28689?page=2#post_22",
  "publishedAt": "2026-05-19T18:41:24.000Z",
  "site": "https://discourse.datamethods.org",
  "textContent": "Food for thought. I understand your rationale and I see what you mean. Obviously, the subgroup designation as an effect modifier has to be justified by prior data or knowledge – and if you disagree with the rationale then obviously you disagree with the conclusion.\n\nBut this is a different argument than your post- randomisation biomarker driven collider argument that is presented in the paper is it not?",
  "title": "Collider in RCT Subgroup Analysis"
}