They reported using informal ways to measure pain or a standardized granular numeric scale.

Short-term outcomes were measured using a visual numeric scale (VNS) and a five-grade scale.

Each subject completed a questionnaire rating their severity of pruritus on a numeric scale of 1 to 10.

Pain was measured using a faces pain scale for children aged 4-7 years and a numeric scale for children aged 8-13 years.

The primary endpoint of the study was itching relief 2 days after the ED visit, rated on a numeric scale of 0 to 10.