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Table 2 Definition of the symptom severity stages

From: Early nonreactivity in the conjunctival provocation test predicts beneficial outcome of sublingual immunotherapy

Score Severity
0 Absent symptoms: no sign/symptom evident
1 Mild symptoms: sign/symptom clearly present, but minimal awareness, easily tolerated
2 Moderate symptoms: definite awareness of sign/symptom that is bothersome, but tolerable
3 Severe symptoms: sign/symptom that is hard to tolerate; causes interference with the activities of daily living and/or with sleeping