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. 2021 Oct 21;11:751232. doi: 10.3389/fcimb.2021.751232

Table 1.

Details of the COVID-19 patients examined at presentation.

Characteristics* Healthy (n = 19) Asymptomatic (n = 23) Mild (n = 32) Severe (n = 31) Convalescent (n = 23) p-value$
Age in years (median)# 27 (18-33) 46 (6-70) 40 (15-67) 59 (30-85) 26 (15-51)
Male (%) 10 (53%) 12 (52%) 19 (59%) 21 (68%) 16 (70%)
Female (%) 9 (47%) 11 (48%) 13 (41%) 10 (32%) 7 (30%)
Mechanical Ventilation NA NA NA 19 (61.3%) NA
Leukocyte count (per mm3) 6205 ± 416 9183 ± 961 0.007
% of neutrophils 61 ± 3 80 ± 2 <0.0001
% of lymphocytes 29 ± 2 13 ± 2 <0.0001
Neutrophil to lymphocyte ratio 3 ± 1 12 ± 3 0.007
Platelets count 237909 ± 14504 241300 ± 21294 0.89
D-dimer (ng/mL) 198 ± 38 984 ± 258 0.005
CRP (mg/L) 34 ± 13 206 ± 39 0.0002
DEFA1 (ng/mL) 113 ± 11 177 ± 44 230 ± 17 452 ± 46 175 ± 36 <0.0001
S100A8/A9 (Calprotectin, ng/mL) 2288 ± 687 10134 ± 1236 16589 ± 2651 18183 ± 2512 4645 ± 899 0.48

*Values are expressed as mean ± SEM; #age in years expressed as median (range). NA denotes as not applicable. –indicates not available. $indicates statistical significance on comparison of datasets between mild and severe groups.