Worst Scratch/Itch NRS assesses the average itch intensity over the previous 24 hours4
It is a patient-reported measure that uses a 0- to 10-point scale, with which caregivers of infants to preschoolers aged 6 months to 5 years were asked:
“How would you rate your child’s scratching/itching at its worst in the past 24 hours?”
0
None
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5
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10
The Worst
Imaginable
A reduction of at least 4 points in Worst Scratch/Itch from baseline is a clinically meaningful change.2