Table 2.

Comparison of mean Vitamin D receptor concentrations before and after supplementation of Vitamin D3

	Before supplementation (n=19)		After supplementation (n=19)		P
	Mean	SD	Mean	SD
VDR concentration (ng/ml)	3.31	1.73	8.78	3.24	0.001***

*Is a standard notation used to determine the level of significance. P value by independent sample t-test. P<0.05 is considered to be statistically significant. *P<0.05, **P<0.01, ***P<0.001. VDR – Vitamin D receptor; SD – Standard deviation; n – Sample size; NS – Statistically nonsignificant