Table 1. Inter-observer agreement.

	Bronchovascular network	Air trapping	Rib horizontalization	Alveolar infiltrate	Air bronchogram
Observer 1- Observer 2
Kappa	0.101	0.13	0.292	0.215	0.239
p	0.151	0.063	0.000	0.002	0.001
95% CI	[-0.05, 0.26]	[-0.01,0.27]	[0.157, 0.426]	[0.081, 0.350]	[0.093, 0.385]
Observer 1- Observer 3
Kappa	0.163	0.051	0.264	0.146	0.135
p	0.021	0.465	0.037	0.037	0.055
95% CI	[0.004, 0.322]	[-0.088, 0.191]	[0.128, 0.401]	[0.010, 0.282]	[-0.008, 0.278]
Observer 2- Observer 3
Kappa	0.164	0.204	0.34	0.313	0.194
p	0.02	0.004	0.000	0.000	0.006
95% CI	[0.001, 0.322]	[0.066, 0.343]	[0.208, 0.472]	[0.181, 0.444]	[0.051, 0.338]

CI = confidence interval.