Correlation between chest CT severity scoring system with oxygen saturation and laboratory inflammatory markers in adult patients with COVID-19 infection

Egyptian Journal of Radiology and Nuclear Medicine

Table 5 Relation between chest CT severity score and laboratory data of the studied cases

	Grouping of chest CT severity score	N	Median range	Mean	S.D	Test	P
Blood oxygen saturation level	Mild to moderate	273	96 88–99	95.6	2.85	19.8*	< 0.001 HS
Blood oxygen saturation level	Severe	32	86 83–87	85.4	1.7	19.8*	< 0.001 HS
Absolute lymphocytic count	Mild to moderate	273	1.5 0.51–2.9	1.53	0.56	4.11^#	< 0.001 HS
Absolute lymphocytic count	Severe	32	1.12 1.1–1.3	1.18	0.09	4.11^#	< 0.001 HS
D-dimer	Mild to moderate	273	0.32 0.15–1.57	0.38	0.29	8.79^#	< 0.001 HS
D-dimer	Severe	32	1.21 0.69–1.79	1.23	0.46	8.79^#	< 0.001 HS
CRP	Mild to moderate	273	12.6 3–110	24.7	28.3	6.57^#	< 0.001 HS
CRP	Severe	32	87 16–132	80.3	47.9	6.57^#	< 0.001 HS
Ferritin	Mild to moderate	273	490 98–1463	551.01	341.5	4.69^#	< 0.001 HS
Ferritin	Severe	32	687 558–1502	926.8	426.2	4.69^#	< 0.001 HS

This table shows that blood oxygen saturation level and absolute lymphocytic count was statistically significantly higher among cases with mild to moderate CT severity index, while D-dimer, CRP and ferritin level was statistically significantly higher among cases with severe chest CT severity score
HS: P value < 0.001 is high significant
*t-test of significance
^#Mann–whitney test for non-parametric data