Randomisation to protect against selection bias in healthcare trials - Odgaard‐Jensen, J - 2011 | Cochrane Library https://t.co/tfSRZh1g2O
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RT @sean9n: "Observational evidence is clearly better than opinion, but it is thoroughly unsatisfactory. The only exceptions are drugs whos…
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"Observational evidence is clearly better than opinion, but it is thoroughly unsatisfactory. The only exceptions are drugs whose effects on immediate mortality were so obvious that no RCTS were necessary, such as insulin, sulphonamide, and penicillin" htt
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割付けの隠蔽化が不明瞭なRCTは効果を40%ほど過大評価しやすい。一方、隠蔽化が適正に行われているものとそう変わらないという報告もある。 Randomisation to protect against selection bias in healthcare trials - Odgaard‐Jensen, J - 2011 | Cochrane Library https://t.co/QDWrlK1v4v