Table 3.

Laboratory and radiologic findings between aged ≥60 years and aged <60 years among COVID-19 patients with stroke.

Laboratory and radiologic findings	Aged ≥ 60 years (N = 19)	Aged < 60 years (N = 8)	p
Laboratory tests (reference values)
White blood cells (4–10 × 10⁹ cells per l)	6.2±2.0	6.1±2.0	0.904
Increased (n/N; %) a	2/19 (10.5)	1/8 (12.5)
Lymphocytes (1.1–3.2 × 10⁹ cells per l)	1±0.5	1.3±0.8	0.312
Decreased (n/N; %) b	8/19 (42.1)	4/8 (50)
Neutrophils count (1.8-6.3 × 10⁹ cells per l)	4.8±2	4.3±1.6	0.542
Increased (n/N; %)	4/19 (21.1)	1/8 (12.5)
Platelet count (× 10⁹ per l; normal range 125.0–350.0)	179.4±60.2	231.4±45.7	0.025
Decreased (n/N; %)	2/19 (10.5)	0/8 (0)
Lactate dehydrogenase (U/l; normal range 120.0-250.0)	256.9±66	206.6±54.8	0.060
Increased (n/N; %)	8/18 (44.4)	2/8 (25)
C-reactive protein (mg/l; normal range 0.0-5.0)	24.1 (12, 49)	5.4 (4.9, 12.6)	0.085
Increased (n/N; %)	15/18 (83.3)	4/8 (50)
Prothrombin time (s; normal range 10.5-13.5)	12.6 (12, 13.5)	11.5 (10.5, 13.1)	0.140
Increased (n/N; %)	4/19 (21.1)	0/7 (0)
Fibrinogen (g/l; normal range 2-4)	4±1.1	2.8±0.8	0.013
Increased (n/N; %)	11/19 (57.9)	1/7 (14.3)
D-dimer (µg/l; normal range 0.0-0.5)	0.7 (0.4, 1.2)	0.7 (0.2, 1.6)	0.689
Increased (n/N; %)	10/18 (55.6)	3/6 (50)
CT findings - no./total no. (%)
bilateral pulmonary opacities	17/19 (89.5)	6/8 (75)	0.448
Unilateral pulmonary opacities	1/19 (5.3)	2/8 (25)

Note: Data are presented with median (IQR), mean (SD), n (%), or n/N (%), where N is the total number of patients with available data. P values indicate differences between different age groups (<60 years vs. older than 60 years), and p < 0.05 was considered as statistically significance.

^aIncreased means over the upper limit of the normal range.

^bDecreased means below the lower limit of the normal range.