Research Article

Differential Associations of Inflammatory and Endothelial Biomarkers with Disease Activity in Rheumatoid Arthritis of Short Duration

Table 3

Traditional cardiovascular risk factors according to DAS28.

Control group ( )RA patients with low DAS28 ( )RA patients with high DAS28 ( )P valueuaP adjusteda
NvMean (SD)NvMean (SD)NvMean (SD)

Age, years 2931.65 (7.64)1539.77 (9.23)*1142.9 (9.92)*<0.001<0.001
Smoking habit, number (%)155 (33%)116 (54%)0.592
Steroids, number(%)153 (20%)115 (45%)0.337
NSAIDs, number(%)158 (53%)118 (72%)0.551
Systolic blood pressure, mmHg 28114.96 (12.78)15115.66 (15.98)11129.18 (18.53)*#0.0280.116
Diastolic blood pressure, mmHg 2876.75 (6.76)1578.44 (7.19)1182.18 (8.32)0.1220.551
Mean arterial pressure, mmHg2889.48 (7.98)1590.85 (9.54)1197.84 (10.46)*0.0380.210
Body mass index, kg/m22923.24 (2.63)1423.72 (3.78)1123.03 (4.57)0.9060.324
Waist circumference (cm) 2880.67 (10.92)1478.76 (8.56)1178.36 (12.62)0.7360.204
Glucose, mmol/L294.73 (0.46)154.56 (0.32)114.74 (0.51)0.3730.307
TC, mmol/L285.03 (0.73)145.26 (1.21)104.59 (1.09)‡¥0.2330.002
LDL-C, mmol/L282.85 (0.8)143.19 (0.93)92.83 (0.92)‡¥0.4020.019
HDL-C, mmol/L281.71 (0.49)141.61 (0.42)91.40 (0.41)0.2060.055
Triglycerides, mmol/L281.02 (0.54)141.02 (0.49)90.91 (0.45)0.8450.400
Creatinine, µmol/L2969.77 (9.67)1562.91 (9.74)1153.35 (7.83)*#‡¥<0.001<0.001
eGFR, mL/min per 1.73 m2  of BSA29107.69 (17.23)15103.01 (24.77)11129.63 (15.79)*#‡¥0.002<0.001
Fibrinogen, g/L 292.98 (0.7)153.31 (1.14)115.2 (1.31)*#‡¥<0.001<0.001
Homocysteine, µmol/L 2710.56 (4.33)1510.46 (4.69)1110 (4.7)0.9410.964
Cystatin C, mg/L260.53 (0.1)150.69 (0.14)*‡110.78 (0.16)*‡<0.001<0.001

Data are shown as unadjusted means (SD). low DAS28 = (2.6–5.1); high DAS28 = (>5.1).
Nv: valid cases; RA: rheumatoid arthritis; DAS28: disease activity score in 28 joints; TC: total cholesterol; LDL-C: low-density lipoproteins-cholesterol; HDL-C: high-density lipoproteins-cholesterol; ESR: erythrocyte sedimentation rate; hsCRP: high-sensitivity C-reactive protein; TNF-α: tumor necrosis factor-α; ADMA: asymmetric dimethyl-L-arginine; SDMA: symmetric dimethyl-L-arginine; sVCAM-1: soluble vascular cell adhesion molecule-1; MCP-1: monocyte chemotactic protein-1; sE-selectin: soluble E-selectin; vWf: von Willebrand factor. uaunadjusted P value in ANOVA (GLM models). * versus control group and # versus RA patients with low disease activity in post hoc analyses for unadjusted ANOVA.
aAge-sex adjusted P value for the defining groups of patients in ANOVA (GLM models)—type III sum of squares (SS) was used. versus control group and ¥ versus RA patients with low disease activity in post hoc analyses for adjusted ANOVA.