Table 4 Comparison of cough rates counted from positive algorithm files with original full files and comparison of cough rates counted from positive plus negative files with original full files; all data are median (inter-quartile range)
From: Data reduction for cough studies using distribution of audio frequency content
| Â | Overall | Healthy volunteers | Chronic cough | COPD | Asthma |
|---|---|---|---|---|---|
(n = 20) | (n = 5) | (n = 5) | (n = 5) | (n = 5) | |
Algorithm Difference (B-A) | 0.0c/h (-1.2 to 0.4) | 0.0c/h (0.0 to 0.2) | 0.0c/h (-0.2 to 2.8) | 0.0c/h (-2.5 to 1.4) | -3.2c/h (-6.2 to -0.2) |
Manual Counters Difference (D-A) | 0.0c/h (-0.4 to 0.4) | 0.0c/h (0.0 to 0.2) | 0.3c/h (-0.2 to 2.8) | 0.0c/h (-2.5 to 1.6) | -0.4c/h (-3.2 to 0.4) |
Algorithm Absolute deviation (B-A) | 0.6c/h (0.0 to 2.9) | 0.0c/h (0.0 to 0.2) | 0.4c/h (0.0 to 2.8) | 1.3c/h (0.4 to 2.8) | 3.2c/h (0.6 to 6.2) |
Manual Counters Absolute deviation Abs(D-A) | 0.4c/h (0.0 to 2.0) | 0.0c/h (0.0 to 0.2) | 0.36c/h (0.2 to 2.8) | 1.3c/h (0.6 to 2.8) | 0.4c/h (0.4 to 3.2) |