Expected incremental costs (ΔC), expected incremental QALYs (ΔQ) and the relative ICERs (in 2018 process) for each main scenario and each possible variation (20 scenarios in total).

The length of the grass-pollen season S, and of the part P of the pollen season during which immunotherapy is more effective in symptom control than symptomatic therapy, are expressed in days (d).草花粉季的时长S，以及花粉季内免疫疗法在症状控制方面优于对症疗法的时段P，均以日（d）作为计量单位。