From: Cough in chronic obstructive pulmonary disease: is it important and what are the effects of treatment?
Adjusted mean
Treatment effect (SFC-comparator)
95% CL
p-value
Placebo
(n = 357)
1.44
−0.091
−0.17, -0.02
0.018
Salmeterol
(n = 370)
1.36
−0.018
−0.09, 0.06
0.639
FP
(n = 368)
1.38
−0.037
−0.11, 0.04
0.340
SFC
(n = 351)
1.35
-