TABLE 3

Agreement (κ) between different definitions of asthma–chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) patients in the asthma/COPD study population#

ACOS DefinitionACOS Definition
123456
11.00
21.001.00
30.040.041.00
40.030.030.031.00
50.410.410.230.251.00
60.270.270.160.090.281.00

#: n=846; : see main text and table 2 for ACOS definitions.