Table 3

- Endothelial dysfunction and oxidative stress markers in the studied groups.

VariablesRheumatoid arthritis patients N=100Control N=50Test of significanceP-value
VCAM-1 (pg/ml)1258.1 ± 386.3759.9 ± 169.28.6<0.001
Total antioxidant capacity (mM/L)1.2 ± 0.11.3 ± 0.11.90.05
MDA (nmol/ml)6.5 ± 3.54.08 ± 2.54.3<0.001
 Group 1 N=50Group 2 N=50Control N=50  
VCAM-1 (pg/ml)Mean ± SD 1022.1 ± 200.1Mean ± SD 1494.1 ± 384.5Mean ± SD 75 9.9 ± 169.295.8<0.001
P1<0.001, P2<0.001, P3<0.001
Total antioxidant capacity (mM/L)1.3 ± 0.11.1 ± 0.21.3 ± 0.113.0<0.001
P1<0.001, P2=0.832, P3<0.001
MDA (nmol/ml)5.6 ± 3.77.3 ± 3.14.08 ± 2.513.2<0.001
P1=0.025, P2=0.035, P3<0.001
Data are expressed as mean ± SD. VCAM-1: vascular cell adhesion molecule-1. MDA: malondialdehyde.P1: Group I vs II, P2: Group I vs III, P3: Group II vs III. P≤0.05 is significant. P<0.001 is highly significant.