Table 5: Results of significance tests regarding the course of change of the BSS-ped total and the item scores from the first to the third visit (mean ranks) in placebo patients of the main and comparative sample using the Friedman-Test.

- Main sample: n = 39 Comparative sample: n = 35*
- Cough Rales° Dyspnoea BSS-ped Cough Rales° Dyspnoea BSS-ped
Day 0 2.67 2.56 2.92 2.67 2.20 2.16 2.14 2.33
Day 3-5 2.01 2.17 2.00 2.01 2.09 2.14 1.90 2.06
Day 7 1.32 1.27 1.08 1.32 1.71 1.70 1.96 1.61
Chi2 (df = 2) 52.51 50.51 72.00 52.51 12.90 9.32 4.27 12.37
Exact significance (p) 0.000 0.000 0.000 0.000 0.001 0.009 0.115 0.002

* Taken from the BSS; °pulmonary rales at auscultation