Table 4. Correlations between vitamin D, ESR, hs-CRP, BMI, and disease duration .

Variables	hs-CRP	ESR-1h	BMI	Disease duration
25-OH-vitamin D	R	0.069	0.16	0.15	- 0.07
	P value	0.52	0.15	0.17	0.52
hs-CRP	R		0.5	0.2	0.26
	P value		< 0.001	0.056	0.014
ESR 1h	R			-0.06	0.07
	P value			0.56	0.49