TABLE 1.

Summary of patient demographics and results for SARS‐CoV‐2–positive patients

	SARS‐CoV‐2 positive patients	SARS‐CoV‐2 negative controls
	n = 20	n = 20
Age, y, median (range)	63 (42‐78)	54 (22‐77)
Male, %	95	70
Blood group, n (%)
Group O	8 (40)	11 (55)
O D positive	8	10
O D negative	0	1
Group A	8 (40)	8 (40)
A D positive	8	7
A D negative	0	1
Group B	3 (15)	1 (5)
B D positive	3	1
Group AB	1 (5)	0
AB D positive	1	0
On antibiotics in past 7 days, n (%)*	17 (85)	12 (60)
Hemoglobin, g/L, median (95% CI)	88 (82–93)	88 (86–95)
Bilirubin, μmol/L, median, (95% CI)	6 (5‐12)	10 (7‐15)
Lactate dehyrdogenase, U/L, median (95% CI)	389 (343‐432)	441 (341‐648)
Direct antiglobulin test positive, n (%)	16 (80)	7 (35)
IgG positive	15 (94)	6 (86)
IgG and C3d positive	1 (6)	0
IgG and C3d negative	0	1 (6)
Eluate with RBC antigen specificity	0	0

CI, confidence interval; SARS‐CoV‐2, severe acute respiratory syndrome coronavirus 2.