Patient-directed self-management of pain (PaDSMaP) compared to treatment as usual following total knee replacement; a randomised controlled trial.

BMC Health Serv Res · 2018 · PMC5944138 · PMID 29743064

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highly significantno p-value reported

In an unplanned analysis suggested by the research nurses, lower static pain scores at day 1 breakfast were a highly significant predictor of successful self-medication.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.