Table 1.

Analysis of Radiographic Characteristics and Dynamic Radiographic Transition Characteristics of Different Clinical Types at different stages [n (%)].

	Radiographic Characteristics					Dynamic Radiographic Transition Characteristics
CT Characteristics	Moderate (n = 47)	Severe & Critical (n = 20)	$χ^{2}$	P	K	Moderate (n = 47)	Severe & critical (n = 17)	$χ^{2}$	P	K
Peak Stage
Dominant distribution in pulmonary lobes
Periphery	23 (48.94)	1 (5.00)	11.781	0.001	0.95	26 (55.32)	2 (11.76)	9.623	0.002	0.76
Center	1 (2.13)	0	0.432	1.000	1	1 (2.13)	0	0.367	1.000	0.75
Periphery & center	23 (48.94)	19 (95.00)	12.727	<0.001	0.87	17 (36.17)	15 (88.24)	13.537	<0.001	0.79
Density and internal characteristics
GGO	11 (23.40)	3 (15.00)	0.600	0.528	0.89	18 (38.30)	8 (47.06)	0.190	0.663	0.79
Consolidation	0	0	–	–	1	0	0	–	–	1
Mixture of ground glass and consolidation	36 (76.60)	17 (85.00)	0.600	0.528	0.89	25 (53.19)	9 (52.94)	0.075	0.785	0.69
Thickened interlobular septa	36 (76.60)	9 (45.00)	6.351	0.012	0.90	15 (31.91)	5 (29.41)	0.122	0.727	0.79
Thickened lobular septa	12 (25.53)	13 (65.00)	9.343	0.002	0.81	7 (14.89)	8 (47.06)	6.416	0.019	0.83
Thickened pleurae	12 (25.53)	11 (55.00)	5.404	0.020	0.85	11 (23.40)	9 (52.94)	4.344	0.037	0.83
Thoracic effusion	2 (4.26)	5 (25.00)	6.453	0.021	0.95	2 (4.26)	0	0.799	1.000	1
Air bronchogram	22 (46.81)	6 (30.00)	1.629	0.202	0.82	5 (10.64)	3 (17.65)	0.425	0.674	0.66
Thickened vascular bundles	34 (72.34)	6 (30.00)	10.454	0.001	0.88	18 (38.30)	2 (11.76)	4.726	0.030	0.67
Lesion outcome
Range narrowing						34 (72.34)	15 (88.24)	0.933	0.481	0.77
Quantity decrease						22 (46.81)	13 (76.47)	3.513	0.061	0.67
Density reduction						39 (82.98)	17 (100.00)	2.104	0.309	0.87
Fibrotic change						17 (36.17)	15 (88.24)	12.096	0.001	0.85
Bronchial cystic dilation						0	0	–	–	1
Completely absorbed						3 (6.38)	0	1.219	0.553	1
Early Stage of Outcome
Dominant distribution in pulmonary lobes
Periphery	22 (46.81)	1 (5.00)	10.878	0.001	0.88	27 (45.76)	6 (25.00)	3.071	0.080	1
Center	1 (2.13)	0	0.432	1.000	1	0	0	–	–	1
Periphery & center	23 (48.94)	19 (95.00)	12.727	<0.001	0.78	16 (27.12)	17 (70.83)	13.612	<0.001	0.98
Density and internal characteristics
GGO	8 (17.02)	4 (20.00)	0.064	1.000	0.85	36 (61.02)	16 (66.67)	1.981	0.159	0.96
Consolidation	0	0	–	–	1	0	0	–	–
Mixture of ground glass and consolidation	39 (82.98)	16 (80.00)	0.230	0.723	0.81	5 (8.47)	7 (29.17)	3.387	0.066	0.97
Thickened interlobular septa	31 (65.96)	10 (50.00)	1.792	0.181	0.83	4 (6.78)	6 (25.00)	3.134	0.148	0.95
Thickened lobular septa	11 (23.40)	13 (65.00)	10.169	0.001	0.84	3 (5.08)	9 (37.50)	10.059	0.003	0.85
Thickened pleurae	11 (23.40)	12 (60.00)	7.995	0.005	0.87	4 (6.78)	7 (29.17)	4.616	0.043	0.93
Thoracic effusion	2 (4.26)	5 (25.00)	6.271	0.023	0.90	0	2 (8.33)	3.778	0.121	1
Air bronchogram	12 (25.53)	4 (20.00)	0.281	0.758	0.84	2 (3.39)	1 (4.17)	0.005	1.000	1
Thickened vascular bundles	28 (59.57)	3 (15.00)	11.775	0.001	0.66	3 (5.08)	3 (12.50)	0.623	0.658	1
Lesion outcome
Reduced lesion size	36 (76.60)	18 (90.00)	1.291	0.319	0.77	24 (40.68)	22 (91.67)	9.778	0.002	0.85
Quantity decrease	7 (14.89)	13 (65.00)	16.357	<0.001	0.76	27 (45.76)	19 (79.17)	2.249	0.134	0.93
Density reduction	32 (65.09)	18 (90.00)	3.169	0.118	0.78	38 (64.41)	22 (91.67)	0.421	0.703	0.95
Fibrotic change	8 (17.02)	17 (85.00)	27.078	<0.001	0.73	9 (15.25)	19 (79.17)	22.101	<0.001	0.93
Bronchial cystic dilation	0	0	–	–	1	1 (1.69)	1 (4.17)	0.195	1.000	0.96
Completely absorbed	1 (2.13)	0	0.441	1.000	1	16 (27.12)	1 (4.17)	8.586	0.003	0.97