Table 2.

Characteristics and serum levels of zinc among patients with confirmed COVID-19 and control group

	Patients with confirmed COVID-19	Control group	p value
Patient number, n (%)	100 (100)	269 (100)	-
Age, years (IQR)	13.3 (8–15.4)	10.1 (5.1–14.5)	0.006
Sex, n (%)			0.982
Girl	56 (56)	151 (56.1)
Boy	44 (44)	118 (43.9)
Serum zinc, median (IQR) (ng/mL)	88.5 (77.2–100)	98 (84–111)	0.001
Patient numbers according to serum levels of zinc, n (%)			0.623
Serum levels of zinc < 70	11 (11)	25 (9.3)
Serum levels of zinc > 70	89 (89)	244 (90.7)
Patient number according to months, n (%)			<0.001
August	35 (35)	119 (44.2)
September	31 (31)	61 (22.7)
October	21 (21)	88 (32.7)
November	13 (13)	1 (0.4)