Table 3.

Laboratory findings of patients with COVID-19 with or without neurological presentations

	Total	Without neurological symptoms	With neurological symptoms	P value
	n = 77	n = 59	n = 18
Leukocyte count	4.8 (3.8–5.8)	5.0 (4.1–6.0)	4.5 (3.6–5.7)	0.290
Neutrophil count 109/L	3.1 (2.1–3.6)	3.2 (2.1–3.9)	2.5 (1.9–3.2)	0.153
Lymphocyte count 109/L	1.4 (1.1–1.8)	1.4 (1.1–1.7)	1.5 (1.0–1.9)	0.865
Basophil count	0.01 (0.01–0.02)	0.01 (0.01–0.03)	0.01 (0.01–0.02)	0.017
Hemoglobin	127.5 (117.0–138.0)	130.0 (121.0–139.0)	117.0 (109.0–130.5)	0.762
Platelet count	193.5 (167.8–247.5)	189.5 (164.8–245.0)	213.0 (178.0–288.2)	0.254
Urea nitrogen	4.1 (3.2–4.9)	3.8 (3.0–4.7)	4.4 (3.8–6.6)	0.045
Cystatin C	1.0 (0.9–1.2)	1.0 (0.8–1.2)	1.1 (1.0–1.4)	0.028
d-Dimer	0.4 (0.2–0.7)	0.3 (0.2–0.7)	0.5 (0.2–0.7)	0.647
Fibrinogen	3.7 (3.2–4.7)	3.7 (3.1–4.7)	4.0 (3.3–4.6)	0.652
Erythrocyte sedimentation rate	30.5 (18.8–62.5)	22.0 (17.0–59.5)	35.0 (24.0–75.5)	0.164
hs-CRP	1.6 (0.5–5.3)	1.3 (0.3–4.8)	2.2 (0.9–20.4)	0.039

	n = 51	n = 36	n = 15
IL-2	2.4 (2.3–2.6)	2.4 (2.3–2.6)	2.4 (2.3–2.6)	0.456
IL-4	2.0 (1.6–2.4)	2.0 (1.7–2.2)	2.1 (1.4–2.5)	0.702
IL-6	4.1 (2.8–5.8)	4.0 (2.8–5.7)	4.2 (2.9–19.0)	0.642
IL-10	2.8 (2.3–3.2)	2.8 (2.3–3.2)	2.8 (2.3–3.5)	0.733
TNF-α	1.9 (1.7–2.2)	1.9 (1.7–2.3)	1.9 (1.8–2.3)	0.836
IFN-γ	1.9 (1.6–2.4)	1.8 (1.6–2.5)	1.9 (1.6–2.0)	0.627

	n = 54	n = 40	n = 14
CD3 + T	75.3 (68.3–81.7)	77.4 (70.0–81.9)	71.2 (64.8–84.0)	0.385
CD4 + T	46.4 (40.9–52.3)	46.7 (42.6–52.0)	47.0 (36.2–55.2)	0.921
CD8 + T	24.9 (17.7–27.8)	25.5 (17.4–27.8)	24.0 (17.1–27.7)	0.567
CD4 + /CD8 +	2.1 (1.5–2.6)	2.1 (1.5–2.6)	2.1 (1.5–2.8)	0.805