Table 2

 Summary statistics for objective and subjective measures of cough during the day and night

DayNightp Value
cs/h, cough seconds per hour; log C5, logarithmic transformation of concentration causing 5 coughs; VAS, Visual Analogue Scale.
*Median (range).
†Wilcoxon signed rank test.
‡Mean (SD).
Cough rate (cs/h)15.59 (2–74.8)*2.94 (0–26.7)*<0.001†
Cough score2.81 (0.85)‡1 (0–4)*<0.001†
Cough VAS (mm)40.6 (23.7)‡18 (0–87)*<0.001†
C5 (M)0.25 (0.03–4)*NANA
Log C5 (M)−0.52 (0.58)†NANA