Table 2.

Comparison between patients and control regarding vitamin D.

	PATIENTS GROUP	CONTROL GROUP	t	P	SIG.
	MEAN ± SD	MEAN ± SD
Vitamin D (ng/mL)	17.6 ± 6.9	79.0 ± 28.7	−11. 2	<0.001	HS

Abbreviations: HS, highly significant; P, level of significance; SD, standard deviation; t, t-test.