The HIV-negative control group The HIV-positive group
    Aortic calcification score  
  Total n=77 Total n=77 ≤ 0.031 n=38 >0.031 n=39 p
CD4 T lymphocyte count (/mm3) - 419.5 ± 256.0 410.6 ± 263.9 428.2 ± 251.2 0.766
HIV load (log10) - 2.5 ± 1.5 2.7 ± 1.5 2.4 ± 1.4 0.336
HIV load greater than 500 copies/mln (%) - 26 (33.7) 12 (31.6) 14 (35.9) 0.257
Serum calcium, mmol/L 2.3 ± 0.1 2.2 ± 0.4 2.2 ± 0.11 2.2 ± 0.5 0.596
Serum phosphate,mmol/L 0.9 ± 0.2 1.2 ± 0.3 1.1 ± 0.2 1.2 ± 0.4 0.613
Creatinine (mmol/L) 94.3 ± 11.6 90.5 ± 48.4 83.2 ± 27.5 97.6 ± 62.3 0.198
Creatinine clearance calculated with the MDRD formula (mL/mn/1.73m2) 98.2 ± 20.5 96.8 ± 79.5 108.6 ± 106.3 84.9 ± 34.6 0.196
Serum glucose 4.8 ± 1.2 5.2 ± 1.1 5.0 ± 0.7 5.3 ± 1.4 0.257
Serum total cholesterol (g/L) 2.2 ± 0.4 2.1 ± 0.7 1.8 ± 0.5 2.3 ± 0.8 0.002
Serum triglycerides (g/L) 1.1 ± 0.5 1.5 ± 1.1 1.4 ± 1.3 1.7 ± 0.9 0.343
Serum LDL cholesterol (g/L) 1.3 ± 0.3 1.4 ± 0.8 1.2 ± 0.8 1.6 ± 0.8 0.021
Serum HDL cholesterol (g/L) 0.6 ± 0.2 0.59 ± 0.28 0.53 ± 0.21 0.65 ± 0.34 0.07
Data are expressed as the mean ± SD or (for binary variables) the number (frequency). p: comparison within the HIV-positive group, as a function of the calcification score. Abbreviations: LDL: low density lipoprotein; HDL: high density lipoprotein; MDRD: Modification of Diet in Renal Disease
Table 2: Clinical biochemistry data for the HIV-positiveand HIV-negative groups.