Table 1.
Patients’ characteristics by COVID-19 status
| Characteristics | Previous COVID-19 |
No previous COVID-19 | All | P-value |
|---|---|---|---|---|
| n (%) | 91 (11.8) | 672 (88.2) | 763 | |
| Age (years), mean (SD) | 70.6 (14.1) | 64.9 (14.8) | 65.5 (14.9) | <0.001 |
| Male (%) | 53.9 | 66.8 | 65.3 | 0.02 |
| Dialysis vintage (months), median (IQR) | 32.4 (12.2–56.0) | 30.5 (14.3–72.2) | 31.0 (14.0–70.9) | 0.9 |
| Comorbidity | ||||
| Charlson comorbidity index, mean (SD) | 8.2 (2.6) | 7.5 (3.1) | 7.6 (3.0) | 0.04 |
| Overweight (%) | 32.1 | 33.5 | 33.3 | 0.8 |
| Obese (%) | 19.8 | 21.1 | 20.9 | 0.8 |
| Hypertension (%) | 81.6 | 78.8 | 79.1 | 0.6 |
| COPD (%) | 18.7 | 11.3 | 12.1 | 0.07 |
| Diabetes mellitus (%) | 43.4 | 37.2 | 37.9 | 0.3 |
| Smoker (%) | 14.5 | 17.1 | 16.8 | 0.6 |
| Neoplasm (%) | 7.9 | 6.1 | 6.3 | 0.5 |
| Risk factors for COVID-19 (%) | ||||
| Living with COVID-19 partner | 38 | 2.3 | 6.3 | <0.001 |
| Living in nursing home | 19.8 | 2.8 | 4.9 | <0.001 |
| Collective/public transport | 68.1 | 51.6 | 53.6 | 0.003 |
| Previous hospital admission | 15.9 | 8.6 | 9.6 | 0.03 |
| Treatment (%) | ||||
| ACEI | 26.3 | 16.6 | 17.7 | 0.03 |
| ARB | 10.4 | 17.8 | 17.0 | 0.1 |
| ACEI or ARB | 35.8 | 33.9 | 34.1 | 0.7 |
| MRA | 0 | 2.8 | 2.5 | 0.1 |
Overweight: body mass index 25–30 kg/m2; obese: body mass index >30 kg/m2. IQR, interquartile range; COPD, chronic obstructive pulmonary disease; ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin II receptor blocker; MRA, mineralocorticoid receptor antagonist.