Table 4. Intra- and interobserver agreement for CT based identification of COPD.

	Observer 1
Observer 1	0.64	Observer 2
Observer 2	0.39	0.28	Observer 3
Observer 3	0.49	0.32	0.68	Observer 4
Observer 4	0.25	0.18	0.38	0.68	Observer 5
Observer 5	0.46	0.28	0.55	0.33	0.53	Observer 6
Observer 6	0.55	0.35	0.36	0.32	0.48	0.49	Observer 7
Observer 7	0.53	0.31	0.48	0.43	0.55	0.57	0.49	Observer 8
Observer 8	0.30	0.35	0.32	0.25	0.35	0.35	0.40	0.53
Automated CT Model	0.30	0.12	0.28	0.23	0.30	0.20	0.33	0.35

Data given are Kappa (κ) values.