Oxidative Stress Biomarkers and Their Association with Mortality among Patients Infected with SARS-CoV-2 in Mexico

Table 2

Clinical characteristics of subjects with COVID-19 and matched healthy controls.

Characteristics	COVID-19 ()	Healthy controls ()	value
SBP (mmHg)	125 (16.9)	118 (18)	0.020
DBP (mmHg)	75.9 (12.5)	69.8 (10)	0.001
FPG (mg/dL)	139 [101, 176]	91.7 [86.3, 97]	<0.001
Urea (mg/dL)	35 [24.5, 48.4]	24.6 [20.8, 36.4]	0.003
Creatinine (mg/dL)	0.80 [0.66, 0.95]	0.90 [0.76, 1.10]	0.001
UA (mg/dL)	3.85 [3.20, 4.80]	5.50 [4.50, 6.53]	<0.001
Ferritin (ng/mL)	1290 [830, 1973]	203 [121, 289]	<0.001
CRP (mg/dL)	197 [89, 273]	2.13 [1.35, 10]	<0.001
MDA (nmoles/mL)	20.5 [16.8, 24.2]	19.1 [14, 22.10]	0.038
TAC (micromoles TE/mL)	889 [847, 929]	956 [833, 1006]	<0.001

Data is presented using mean (standard deviation) or median [interquartile range]. Differences between groups were evaluated with independent -test or Mann–Whitney test. value less than 0.05 was considered statistically significant. SBP: systolic blood pressure; DBP: diastolic blood pressure; FPG: fasting plasma glucose; UA: acid uric; CRP: C-reactive protein; MDA: malondialdehyde; TAC: total antioxidant capacity.