Vitamin D Status, Disease Activity, and Endothelial Dysfunction in Early Rheumatoid Arthritis Patients

Table 2

Laboratory findings in RA patients and controls.

Parameter	Value (mean ± standard deviation)
	RA patients	Controls
ESR (mm/h)	74.11 ± 18.47	8.45 ± 2.99	<0.00001
C-reactive protein (mg/l)	60.34 ± 27.8	2.88 ± 0.98	<0.00001
Fibrinogen (mg/dl)	693.52 ± 284.61	207.18 ± 95.24	<0.0001
DAS28	6.41 ± 0.94	—	—
TNF-α (pg/ml)	89.65 ± 21.41	3.76 ± 1.64	<0.00001
IL-6 (pg/ml)	90.15 ± 20.79	4.41 ± 1.78	<0.00001
FMD (%)	7.94 ± 0.81	13.78 ± 1.43	<0.00001
HOMA-IR	5.97 ± 1.89	1.23 ± 0.19	<0.00001
25(OH) vitamin D	14.90 ± 2.81	36. 39 ± 7.78	<0.00001