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Table 2 Baseline Characteristics of Participants With Allergen Samples Collected

From: Long-Term Effects of Allergen Sensitization and Exposure in Adult Asthma: A Prospective Study

  n   
Age (years) 165 Mean 45  
   Range 10 to 67  
Sex 165 39% male  
Years with asthma 150 Mean 23  
   Range 1 to 59  
Age diagnosed with asthma (years) 150 Mean 23  
   Range 0 to 58  
ICS treatment 165 73%  
ICS dose (BDP dose equivalent, μg) 115 Mean 948  
   Median 800  
   Range 100 to 4000  
Smokers 165 Never 59%
   Ex 30%
   Current 12%
Lung function    
   FEV1 (l) 164 Mean 2.51  
   Range 0.71 to 4.91  
   FVC (l) 137 Mean 3.48  
   Range 1.41 to 7.13  
PD20 (mg) 103 GM 0.422  
   95% CI 0.303 to  
   0.585  
Classification of BHR 103 None or borderline 10%
   (PD20 > 4 mg)  
   Mild 20%
   (PD20 > 1-4 mg)  
   Moderate to severe 70%
   (PD20 ≤ 1 mg)  
Exhaled nitric oxide (ppb) 149 GM 11.04  
   95% CI 9.66 to 12.61  
Atopic (SPT done in 164 subjects)   82%  
Sensitized to:    
   Dust mite    61%
   Cat    49%
   Dog    43%
  1. BDP, beclomethasone dipropionate; SPT, skin prick testing.