Table 2.

Comparison of vitamin D levels between the COVID-19 group and the healthy control group.

	Control group (n = 150)	COVID-19 group (n = 50)	p-Value
Age (years), mean ± SD	52.4 ± 20.2	52.2 ± 20.7	0.965
25-Hydroxyvitamin D3 (ng/dl), mean ± SD	25.0 ± 13.2	15.7 ± 7.9)	<0.001
25-Hydroxyvitamin D3 deficiency, n/n (%)
Deficiency (≤20 ng/dl)	65/150 (43.3%)	37/50 (74.0%)	0.003
Severe deficiency (≤10 ng/dl)	11/150 (7.3%)	12/50 (24.0%)	0.001

SD, standard deviation.