Table 3.
Demographic and biochemical characteristics of the study population stratified according to CAC score group
| CAC score |
P-value | |||
|---|---|---|---|---|
| 1–100, N = 47 | 101–400, N = 39 | > 400, N = 57 | ||
| Age (years) | 60 ± 12 | 60 ± 12 | 65 ± 10 | 0.04 |
| Gender (male, %) | 38 | 72 | 61 | 0.005 |
| HD duration (months) | 38 ± 29 | 61 ± 43 | 61 ± 45 | 0.007 |
| Diabetes (%) | 22 | 26 | 29 | 0.73 |
| CVD (%) | 22 | 29 | 30 | 0.66 |
| Hypertension (%) | 13 | 13 | 16 | 0.65 |
| Smoking (%) | 30 | 41 | 42 | 0.39 |
| Elementary calcium dosage (g/day) | 0.949 ± 0.521 | 1.030 ± 0.554 | 0.860 ± 0.560 | 0.11 |
| Vitamin D treatment (μg/week) | 4.0 ± 1.73 | 3.0 ± 0.01 | 3.33 ± 1.37 | 0.11 |
| 25(OH) vitamin D (ng/mL) | 34.5 ± 2.9 | 42.1 ± 3.7 | 39.2 ± 3.4 | 0.30 |
| Albumin (g/dL) | 4.0 ± 0.3 | 3.8 ± 0.2 | 3.8 ± 0.3 | 0.01 |
| Calcium (mg/dL) | 9.0 ± 0.6 | 9.1 ± 0.7 | 9.4 ± 1.2 | 0.09 |
| Phosphorus (mg/dL) | 4.8 ± 1.4 | 5.1 ± 1.5 | 5.2 ± 1.6 | 0.40 |
| iPTH (pg/mL) | 174 ± 173 | 229 ± 265 | 249 ± 320 | 0.34 |
| Total cholesterol (mg/dL) | 188 ± 46 | 176 ± 47 | 187 ± 46 | 0.43 |
| Triglyceride (mg/dL) | 178 ± 139 | 158 ± 81 | 164 ± 97 | 0.68 |
| Hs-CRP (mg/dL) | 1.08 ± 1.74 | 1.58 ± 2.41 | 1.29 ± 1.95 | 0.52 |
Between-group comparisons for continuous variables were performed using ANOVA; χ2 or Fisher’s exact test was used for categorical variables. HD, haemodialysis; CVD, cardiovascular disease; iPTH, intact parathyroid hormone; hs-CRP, high-sensitivity C-reactive protein.