Table 2

Baseline characteristics of patients with RA entering randomised trial

Placebo
n=7
Infliximab
n=11
p Value
Demographics
 Age (years)55.86 (15.89)61.30 (11.05)0.42
 Gender (proportion female)4/78/110.31 (χ2 test)
Cardiovascular risk
 BMI (kg/m2)25.88 (0.55)24.98 (5.11)0.73
 Total cholesterol (mmol/L)5.05(1.42)5.01 (1.5)0.96
 HDL-c (mmol/L)1.10 (0.22)0.97 (0.17)0.20
 LDL-c (mmol/L)3.20 (0.95)2.90 (1.34)0.62
 Triglyceride (mmol/L)1.67 (1.00)2.52 (0.81)0.63
 Glucose (mg/dL)4.60 (0.70)4.75 (1.24)0.59
 Systolic BP (mm Hg)140.70 (7.27)132.5 (4.67)0.33
 Diastolic BP (mm Hg)75.71 (3.96)76.00 (3.70)0.96
HDL function
 Nitric oxide bioavailability (% buffer-treated cells)81.81 (3.97)84.23 (6.23)0.37
 Superoxide production (nmol/O2-/100 000 cells)4.37 (1.71)3.90 (1.66)0.56
 Paraoxonase-1 activity (μmol p-nitrophenol/L/serum/min)137.52 (1.71)148.24 (14.49)0.09
 Efflux capacity (%)12.25 (2.04)13.52 (1.26)0.31
RA disease activity
 CRP (mg/L)37.65 [19.48–64.31]26.83 [14.37–37.33]0.22
 ESR (mm/hours)30.00 [22.00–76.00]25.00 [14.00–50.50]0.36
 DAS28—CRP score6.08 (0.71)5.17 (1.13)0.09
 DAS28—ESR score5.59 (0.85)4.68 (1.56)0.15
  • Values expressed as mean (SD) and median [IQR] for non-normally distributed data. Comparisons between groups were performed using the independent t-test. Categorical variables were compared using Fisher's exact χ2 test. Comparisons for non-parametric measurements were performed using Mann-Whitney test.

  • APO4, Apolipoprotein A; BMI, body mass index; BP, blood pressure; CRP, C reactive protein; DAS28, Disease Activity Score 28; ESR, erythrocyte sedimentation rate; HDL-c, high-density lipoprotein cholesterol; LDL-c, low-density lipoprotein cholesterol; RA, rheumatoid arthritis.