Table 5 Correlation between different parameters of cough
From: A portable automatic cough analyser in the ambulatory assessment of cough
| Â | Spearman correlation | ||||||
|---|---|---|---|---|---|---|---|
| Â | Number of coughs per hour | Time spent coughing per hour (sec/h) | Cough score for a night period | ||||
| Â | Total | Day | Night | Total | Day | Night | Â |
Number of incidents per hour during daytime | Â | Â | 0.47 (p = 0.064) | Â | Â | Â | Â |
Time spent coughing per hour (sec/h) during daytime | Â | Â | Â | Â | Â | 0.60 (p = 0.014) | Â |
Cough intensity by the NRS | 0.52 (p = 0.066) | Â | Â | 0.37 (p = 0.21) | Â | Â | Â |
Cough score for a day period | Â | 0.60 (p = 0.029) | Â | Â | 0.48 (p = 0.1) | Â | 0.77 (p = 0.002) |
Cough score for a night period | Â | Â | 0.29 (p = 0.34) | Â | Â | 0.26 (p = 0.4) | Â |