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Table 3 Cough counts expressed as coughs per hour per patient; data are median (inter-quartile range)

From: Data reduction for cough studies using distribution of audio frequency content

  Overall Healthy volunteers Chronic cough COPD Asthma
(n = 20) (n = 5) (n = 5) (n = 5) (n = 5)
Full File Cough Rate (A) 26.8c/h (13.1-51.6) 26.0c/h (16.8-53.6) 77.3c/h (43.7-117.5) 10.0c/h (7.3-15.4) 27.6c/h (13.4-36.2)
Positive File Cough Rate (B) 25.2c/h (12.1-51.8) 26.0c/h (17-53.6) 77.3c/h (44.5-119.3) 8.8c/h (7.5-14.6) 24.4c/h (13.2-30.0)
Negative File Cough Rate (C) 0.0c/h (0.0-0.2) 0.0c/h (0.0-0.0) 0.0c/h (0.0-0.2) 0.0c/h (0.0-0.2) 0.4c/h (0.0-4.8)
% missed cough/h 0.0% (0.0-0.1) 0.0% (0.0-0.0) 0.0% (0.0-0.1) 0.0% (0.0-0.7) 1.0% (0.0-4.3)
  1. Note that only segments containing cough were selected for this analysis therefore cough rates are not typical of those seen for full 24 hr recordings in these disease groups