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Table 3 % Change in Mean logC2 from baseline measured at 1,2,4 hrs and 2 wks following citric acid inhalation challenge with the KoKo DigiDoser versus the Mefar Dosimeter.

From: Validation of the ERS standard citric acid cough challenge in healthy adult volunteers

Time point

KoKo DigiDoser (n = 39)

Pearson Correlation

Mefar Dosimeter (n = 39)

Pearson Correlation

 

%Δ Mean C2 log mM

(95%CI)

 

%ΔMean C2 log mM

(95%CI)

 

1 hr

-1.57 (-5.01-1.86)

0.76

-9.79 (-0.28 - -0.08)

0.74

2 hr

-3.14 (-7.50-1.23)

0.67

-10.70 (-18.0 - -3.41)

0.63

4 hr

-2.08 (-6.12-1.96)

0.75

-11.69 (-19.09 - -4.30)

0.60

2 wk

1.36 (-3.04-5.75)

0.67

-8.24 (-15.71 - -0.78)

0.56