Table 6.
Characteristics (given as mean±SD or percentage) of dialysis patients with and without COVID-19.
| With COVID-19 | Without COVID-19 | p -value | |
|---|---|---|---|
| (n = 573) | (n = 4,249) | ||
| Age, years | 70.8 ± 14.3 | 68.7 ± 14.8 | 0.001 |
| Male gender, % | 65.3 | 65.4 | 0.941 |
| Body mass index, kg/m2 | 27.3 ± 5.7 | 25.8 ± 5.7 | 0.000 |
| Dialysis vintage, years | 5.2 ± 6.7 | 4.0 ± 4.0 | 0.000 |
| Dialysis duration per week (h) | 11.4 ± 1.3 | 11.5 ± 1.5 | 0.301 |
| 1–2 dialysis sessions/week or PD, % | 9.1 | 12.4 | 0.042 |
| Home dialysis*, % | 6.6 | 10.9 | 0.004 |
| Kt/V | 1.56 ± 0.36 | 1.59 ± 0.42 | 0.065 |
| Residual function, ml/min | 3.4 ± 4.2 | 3.9 ± 4.8 | 0.110 |
| Hemoglobin, g/dL | 11.1 ± 1.4 | 11.1 ± 1.4 | 0.996 |
| Ferritin, ng/mL | 496 ± 336 | 512 ± 444 | 0.463 |
| Calcium, mmol/L | 2.2 ± 0.2 | 2.2 ± 0.2 | 0.840 |
| Phosphate, mmol/L | 1.6 ± 0.5 | 1.6 ± 0.5 | 0.128 |
| PTH, ng/L | 350 ± 308 | 369 ± 324 | 0.228 |
| Comorbidities, n | 2.6 ± 1.9 | 2.6 ± 2.0 | 0.678 |
| Charlson Comorbidity Index | 4.4 ± 2.1 | 4.5 ± 2.2 | 0.718 |
| Hypertension, % | 85.3 | 83.0 | 0.210 |
| Diabetes mellitus, % | 31.8 | 37.6 | 0.007 |
| COPD, % | 12.3 | 15.9 | 0.043 |
| Iron substitution, % | 78.0 | 72.2 | 0.008 |
| Erythropoietin substitution, % | 81.8 | 79.5 | 0.249 |
*
Home hemodialysis and peritoneal dialysis.