Pruritus assessment & study outcomes
pruritus, itch
Primary outcome measure was a change in the UP intensity. The Visual analogue scale (VAS) and the 5-D itch scale were used to assess pruritus before and after the course of treatment (8 weeks). The VAS is a scale consisting of a 10 cm long line and a single question. It is commonly used for measuring itch intensity with high reliability and validity [