From: A comparison of diagnostic consistency for asthma-chronic obstructive pulmonary disease overlap and clinical characteristics study
GOLD [9]
GesEPOC [10]
Soler-Cataluna et al [11]
Marsh et al [6]
Kauppi et al [5]
Louie et al [12]
Rhee [13]
Met the criteria
43
47
37
46
31
22
12
Prevalence
25.15%
27.49%
21.64%
26.90%
18.13%
12.87%
7.02%