RESULTS
Patient Population
Patient’s demographics and baseline characteristics are shown inTable 1 . The mean age of the predominantly female population (61.4%) was 36.6 years. Average time between onset of AR symptoms and initiation of SLIT treatment was 8 years. 36.1% had concomitant allergic asthma. The proportion of polysensitized patients was 79%. Main co-sensitizations were grass pollen (76.5%), tree pollen (54%), and animal dander (48.5%).
The majority of patients completed the study (Figure 1 ). Younger patients and patients treated by general practitioners (GP) were more likely to discontinue treatment. Other categories did not differ significantly.