Vitamin D Is a Good Marker for Disease Activity of Rheumatoid Arthritis Disease

Table 1

Baseline characteristics of the participants according to gender.

Parameter	Male; ()	Female; ()	Total; ()
Age (years)	53.72 ± 13.39	49.28 ± 10.29	50.09 ± 10.98
Height (cm)	169.12^a ± 8.04	156.96^b ± 7.65	159.22 ± 9.03
Weight (kg)	83.7^a ± 14.12	74.49^b ± 15.45	76.25 ± 15.56
BMI (kg/m^2)	29.35 ± 4.18	30.31 ± 6.69	30.13 ± 6.29
WBC (×1000/μL)	7.7 ± 2.5	7.16 ± 2.5	7.26 ± 2.5
Hb (g/dL)	12.79 ± 1.89	11.66 ± 1.46	11.87 ± 1.6
PLT (×1000/μL)	276.79 ± 74.07	319.07 ± 98.95	311.04 ± 95.85
Vit.D (ng/mL)	17.46 ± 6.79	19.02 ± 8.7	18.73 ± 8.37
Ca (mmol/L)	2.32 ± 0.11	2.35 ± 0.85	2.35 ± 0.77
Phos (mmol/L)	1.31 ± 0.35	1.22 ± 0.32	1.23 ± 0.32
ALP (U/L)	124.12 ± 86.82	108.46 ± 66.84	111.55 ± 70.9
ESR (mm/hr)	48.27 ± 28.69	52.84 ± 23.1	52.02 ± 24.1
DAS28-ESR	3.72 ± 0.64	3.8 ± 0.92	3.79 ± 0.87

BMI: body mass index (18–25 kg/m²); WBC: white blood cells (4.5–11.0 ×1000/μL); Hb: hemoglobin (12.0–16.0 g/dL); PLT: platelets (130–400 ×1000/μL); Vit.D: vitamin D (sufficient >30 ng/mL), Ca: calcium (2.12–2.52 mmol/L); Phos: phosphorus (0.81–1.58 mmol/L); ALP: alkaline phosphatase (50–136 U/L); ESR: erythrocyte sedimentation rate (0–20 mm/hr); DAS28-ESR: disease activity score in 28 joints using erythrocyte sedimentation rate.
Letters with different superscripts in the same row are significantly () different by -test.