Vitamin D Is a Good Marker for Disease Activity of Rheumatoid Arthritis Disease
Table 2
Baseline characteristics of the participants according to the DAS28-ESR disease activity.
Parameter
High activity ()
Moderate activity ()
Low activity ()
value
Age (years)
49.51 ± 5.13
50.97 ± 11.62
49.66 ± 8.92
0.655
Height (cm)
158.41 ± 6.83
160.66 ± 8.36
158.59 ± 11.29
0.728
Weight (kg)
75.41 ± 8.45
78.19 ± 14.78
72.10 ± 18.3
0.373
BMI (kg/m2)
30.51 ± 4.51
30.61 ± 5.51
29.32 ± 8.16
0.781
WBC (×1000/μL)
7.41 ± 4
7.23 ± 2.28
7.03 ± 2.37
0.691
Hb (g/dL)
12.01 ± 1.45
11.90 ± 1.80
12.00 ± 1.31
0.964
PLT (×1000/μL)
331.86 ± 194.32
321.44 ± 91.17
289.82 ± 78.99
0.279
Vit.D (ng/mL)
12.15b ± 3.43
20.63a ± 7.35
23.41a ± 8.06
0.023
Ca (mmol/L)
2.33 ± 0.16
2.28 ± 0.22
2.22 ± 0.31
0.526
Phos (mmol/L)
1.16b ± 0.28
1.30a ± 0.3
1.22b ± 0.19
0.014
ALP (U/L)
98.50 ± 27.03
119.86 ± 85.05
113.87 ± 54.97
0.641
ESR (mm/hr)
69.71a ± 16.79
48.52ab ± 25.1
38.65b ± 19.9
0.01
DAS28-ESR
5.34a ± 0.29
4.01b ± 0.52
2.76c ± 0.27
<0.001
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. value was determined according to ANOVA test. Letters with different superscripts in the same row are significantly () different according to post hoc LSD test.
