Table 1.
Baseline characteristics
| Patient characteristics | Values |
|---|---|
| Age (years), mean (SD) | 68.9 (13.7) |
| Male, n (%) | 54 (60) |
| BMI (kg/m2), mean (SD) | 25.8 (5.4) |
| DN and/or nephroangioslcerosis, n (%) | 25 (27.7) |
| Glomerulonephritis, n (%) | 34 (37.8) |
| Autosomal dominant polycystic kidney disease, n (%) | 1 (1.1) |
| Tubulo-interstitial nephropathy, n (%) | 18 (20) |
| Indeterminate nephropathy, n (%) | 12 (13.3) |
| Blood group, n (%) | |
| O | 39 (44.3) |
| A | 34 (38.2) |
| B | 13 (14.6) |
| AB, missing value (n = 2) | 2 (2.2) |
| Dialysis vintage (years), mean (SD) | 5.9 (8.7) |
| Active on transplant list, n (%) | 3 (3.3) |
| On steroids and/or immunosuppressants, n (%) | 7 (7.8) |
| Diabetes, n (%) | 38 (42.2) |
| Chronic respiratory disease, n (%) | 30 (33.3) |
| Arterial hypertension, n (%) | 77 (85.6) |
| Ischaemic/rhythmic cardiac disease, n (%) | 44 (48.9) |
| Stroke, n (%) | 18 (20) |
| Peripheral artery disease, n (%) | 26 (28.9) |
| Cirrhosis, n (%) | 4 (4.4) |
| History or active cancer/transplantation, n (%) | 30 (33.3) |
| History of COVID-19, n (%) | 19 (20.1) |
| Symptomatic, n/N | 11/19 |
| Asymptomatic, n/N | 8/19 |
| Albuminaemia (g/L), mean (SD) | 35.3 (4.3) |
| Gamma globulin (g/L), mean (SD) | 9.4 (3.2) |
| Hypogammaglobulinaemia (<8 g/L), n (%) | 31 (35.2) |
| Lymphocyte count (×109/L), mean (SD) | 1.3 (0.8) |
| Lymphopaenia, n (%) | 49 (54.4) |
| Pre-dialysis β2-microglobulinaemia (mg/L), mean (SD) | 27.2 (6.5) |
| Pre-dialysis β2-microglobulinaemia >30 mg/L, n (%) | 30 (33.7) |
| C-reactive protein (mg/L), mean (SD) | 11.6 (14.9) |
| HBV vaccine responders, n/N (%) | 34/51 (66.7) |