AU Arbitrary units
CInd: Chronic inducible urticaria
ColdU: Cold urticaria
CST: Cold stimulation test
CTT: Critical temperature threshold
DLQI: Dermatology Life Quality Index
ICT: Ice cube test
HC: Healthy control
PPG: Photoplethysmography
RPPG: Ratio of post-provocation and baseline PPG amplitudes Ratio of post-provocation and baseline PPG amplitudes
UCT: Urticaria Control Test Urticaria Control Test