Table 3.

Paraclinical data in patients with different disease severities.

Feature		Disease severity			P1	P2***
		Mild/moderate (N = 33)	Severe (N = 139)	Critical (N = 28)
Laboratory findings
Lymphopenia		24 (75.0)	99 (76.2)	19 (70.4)	0.985*	0.818
VBG pH		7.42 ± 0.05	7.41 ± 0.05	7.10 ± 1.29	0.572**	0.030
VBG pO2 (mmHg)		36.27 ± 9.11	32.21 ± 9.48	31.85 ± 8.51	0.037**	0.021
VBG pCO2 (mmHg)		39.01 ± 6.81	40.33 ± 7.84	35.12 ± 7.92	0.824**	0.112
VBG pHCO3 (mmHg)		25.86 ± 4.05	25.94 ± 5.05	23.14 ± 4.32	0.705**	0.054
AST (IU/L)		57.92 ± 76.53	48.55 ± 74.94	54.42 ± 31.50	0.470**	0.031
ALT (IU/L)		59.64 ± 87.35	50.94 ± 77.99	49.78 ± 60.37	0.210**	0.384
LDH (U/L)		560.20 ± 200.34	660.74 ± 434.76	897.70 ± 287.47	0.310**	0.137
CRP (mg/L)		51.64 ± 52.07	86.22 ± 62.33	167.59 ± 146.86	0.003**	0.001
Chest CT findings
Consolidation	None	8 (24.2)	36 (25.9)	5 (17.9)	0.009*	0.002
	1 lobe	1 (3.0)	3 (2.2)	0 (0.0)
	2 lobes	21 (63.6)	55 (39.6)	6 (21.4)
	3 lobes	0 (0.0)	1 (0.7)	2 (7.1)
	4 lobes	3 (9.1)	44 (31.7)	15 (53.6)
GGO	None	7 (21.2)	32 (23.0)	9 (32.1)	< 0.001*	< 0.001
	1 lobe	3 (9.1)	0 (0.0)	0 (0.0)
	2 lobes	13 (39.4)	25 (18.0)	6 (3.6)
	3 lobes	0 (0.0)	4 (2.9)	0 (0.0)
	4 lobes	10 (30.3)	78 (56.1)	18 (64.3)
PE		1 (3.0)	8 (5.8)	4 (14.3)	0.376*	0.168
Bronchiectasis		0 (0.0)	1 (0.7)	0 (0.0)	0.656*	0.802

VBG venous blood gas, AST aspartate aminotransferase, ALT alanine aminotransferase, LDH lactate dehydrogenase, CRP C-reactive protein, CT computed tomography, GGO ground-glass opacity, PE pleural effusion.

P₁: Comparison between mild/moderate and severe/critical groups.

P₂: Comparison between mild/moderate, severe, and critical groups.

Bold values are statistically significant (P < 0.05).

*Chi-square or Fisher’s exact test.

**Mann–Whitney test.

***Kruskal–Wallis test.