TABLE 1.
Overview of visits and assessments
| Observation period | Sep 2018–Jul 2019 (PS 2019, EP 2018) | Sep 2019–Jul 2020 (PS 2020, EP 2019) | ||||
|---|---|---|---|---|---|---|
| House dust mites exposure | Sep–Dec c | Sep–Dec c | ||||
| Tree pollen season | Mar–May | Mar–May | ||||
| Grass pollen season | May–Jul | May–Jul | ||||
| Visits | V1 | V2 | V3 | V4 a | V5 a | V6 a |
| V1 b | V2 b | V3 b | ||||
| Prior to/start of PS/EP | Peak of PS/EP | End of/after PS/EP | Prior to/start of PS/EP | Peak of PS/EP | End of/after PS/EP | |
| Start of CSMS diary, including VAS | × | × | ||||
| End of CSMS diary, including VAS | × | × | ||||
| RQLQ(S) | × | × | × | × | × | × |
| RCAT | × | × | ||||
Abbreviations: CSMS, Combined Symptom and Medication Score; EP, Exposure period (house dust mites); PS, Pollen season; RCAT, Rhinitis Control Assessment Test; RQLQ(S), Standardised Rhinoconjunctivitis Quality of Life Questionnaire; VAS, Visual Analogue Scales.
a
AIT population patients with two assigned observations.
b
AIT population patients with single observation period and control population patients.
c
Designated observation period.