The American journal of emergency medicine
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The goal of this study was to determine the minimal change in pain score recognized by patients as meaningful known as minimal clinically important difference (MCID). ⋯ Recognizing the extent of change in pain score that really matters to patients is crucial for the evaluation of treatment effect. Patients perceived a change of 1.65 points on NRS and 16.55 on VAS in their pain severity as meaningful. This value was not different whether the pain was perceived alleviated or aggravated.