Clinical validation of controlled grass pollen challenge in the Environmental Exposure Unit (EEU)

Table 2 Symptom score definitions

Rating	Definition
0 = None	Symptom is completely absent
1 = Mild	Symptom is present, but not bothersome
2 = Moderate	Symptom is bothersome, but tolerable
3 = Severe	Symptom is hard to tolerate, desiring treatment

Participants used this rating system to score their symptoms of rhinnorhea, nasal congestion, sneezing, nasal itching, itchy/watery eyes, red/burning eyes, and itching of the ears/palate/throat. The individual symptom scores were tallied to create a Total Nasal Symptom Score (max 12) and a Total Symptom Score (max 24) for each participant.

ISSN: 1710-1492