Table 5.

Correlation Analysis Among Independent Biomarkers

Independent Biomarkers (Y-Axis)	Independent Biomarkers (X-Axis)	r	p-value
CRP	NLR	0.707	<0.0001
	NO	0.603	<0.0001
Ferritin	NLR	0.658	<0.0001
	NO	0.541	<0.0001
	MDA	0.306	<0.0001
D-dimer	NLR	0.777	<0.0001
	Copper	0.403	0.001
	NO	0.808	<0.0001
	MDA	0.277	0.032
SpO2	CRP	−0.646	<0.0001
	Ferritin	−0.724	<0.0001
	D-dimer	− 0.746	<0.0001
	NO	−0.647	<0.0001
	NLR	− 0.760	<0.0001

Notes: The Spearman correlation was utilized. A p-value of less than 0.05 was considered statistically significant.

Abbreviations: CRP, C-reactive protein; D-dimer, fibrin degradation product; MDA, malondialdehyde; NO, nitric oxide; NLR, neutrophil/lymphocyte ratio; r, correlation coefficient; SpO₂, oxygen saturation.