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Table 6 Change in Lung Function, eNO, and BHR Between 2 Visits According to Living Room Exposure to Dog Allergen*

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

Can f 1 (Living Room)   FEV1 (L) FEV1 (% Predicted) FVC (L) FVC (% Predicted) eNO (ppb) PD20 (Doubling Doses) Between Group Doubling Dose Difference PD20 (95% CI)
Not exposed N 125 124 103 103 84 72 -1.00
  Mean 0.01 2.43† 0.04 2.51 -3.39† 0.10 (-2.14 to 0.14)
  (95% CI) (-0.06 to 0.07) (0.36-4.50) (-0.07 to 0.14) (-0.50 to 5.51) (1.20-1.68) (-0.39 to 0.58)  
Exposed N 39 39 34 34 35 14 t test, P = 0.085
  Mean -0.06 1.31 -0.01 1.81 -2.92† 1.10† ANOVA, P = 0.019
  (95% CI) (-0.19 to 0.07) (-3.93 to 6.55) (-0.24 to 0.22) (-5.44 to 9.06) (1.03-1.85) (0.33-1.86)  
  1. *Lung function and BHR: mean changes (95% CI). eNO: geometric mean (95% CI for ratio).
  2. P < 0.05 vs baseline.