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The IMMPACT group’s recommendations for assessing clinical significance for 0-10 numeric pain scales are that a change of:
≥ 10% represents minimally important change (ePPOC uses this category to identify clinically significant improvement in pain interference)
≥ 30% represents moderate clinically important change (ePPOC uses this category to identify clinically significant improvement for average and worst pain)
≥ 50% represents substantial clinically important change.
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