From: Cough, sarcoidosis and idiopathic pulmonary fibrosis: raw nerves and bad vibrations
Authors (year)
n =
Country
Mean age
% Female
% Cough
Pietinalho (1996) [1]
571
Finland
41
59%
33%
686
Japan
30
55%
3%
Kiter (2011) [2]
293
Turkey
44
67%
52%
Al-Khouzaie (2011) [3]
33
Saudi Arabia
54%
48%