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Table 1 Demographic and clinical characteristics at treatment initiation

From: Characteristics and management of sublingual allergen immunotherapy in children with allergic rhinitis and asthma induced by house dust mite allergens

  Total
  (n = 736)
  n %
Gender   
 Male 470 63.9%
 Female 265 36.1%
Age (years)   
 Mean (±SD) 10.0 ± 3.14  
 5-11 (children) 497 67.5%
 12-17 (adolescents) 239 32.5%
Patients with polysensitisation* 375 62.3%
Pathology of respiratory allergy   
 Rhinitis alone 265 36.0%
 Rhinitis + asthma 438 59.5%
 Asthma alone 33 4.5%
Allergic rhinitis (with or without asthma)   
Disease duration (years)   
n 703 95.5%
Mean (±SD) 3.57 ± 2.43  
Severity (ARIA)**   
Mild intermittent 57 8.1%
Moderate or severe intermittent 56 8.0%
Mild persistent 148 21.1%
Moderate or severe persistent 440 62.8%
Allergic asthma (with or without rhinitis)   
Disease duration (years)   
n 471 64.0%
Mean (±SD) 3.82 ± 2.91  
Severity (GINA 2004)**   
Intermittent 213 45.4%
Mild persistent 163 34.8%
Moderate persistent 84 17.9%
Severe persistent 9 1.9%
Symptoms   
Rhinitis (with or without asthma)   
Rhinorrhoea 625 89.4%
Sneezing 576 82.5%
Nasal obstruction 575 82.3%
Nasal pruritus 428 61.7%
Anosmia 13 1.9%
Asthma (with or without rhinitis)   
Cough 322 68.7%
Wheezing 245 52.1%
Difficult breathing 157 33.6%
Chest tightness 103 22.1%
Rhinitis and/or asthma   
Ocular pruritus 188 25.7%
Teary eyes 131 17.9%
Other 84 11.7%
  1. Categorical variables are presented as the number and percentage of patients relative to the total population with non-missing data.
  2. *Positive skin test to house dust mites and at least one other allergen, calculated as percentage of patients having at least one skin test.
  3. **Missing data, n = 2 each.