Table 2.

Patient baseline characteristics

General

• Age • Sex • BMI

Renal disease

• Primary kidney disease • Dialysis modality • Type of kidney transplantation.

Laboratory parameters

• Serum creatinine (μmol/L), eGFR (ml/min1.73m2), except in dialysis patients • Urine creatinine (g/L), urine protein (g/L) or albumin (g/L), except in dialysis patients • HbA1c (mmol/mol)

Intoxications

• Smoking, alcohol

Comorbidity

• Coronary heart disease / PCI / CABG • Heart failure • Hypertension • Peripheral arterial disease and/or abdominal aortic aneurysm • Cerebrovascular accident • Dementia • Lung disease • Liver disease • Diabetes • Cancer • HIV

PROMs

• SF-12 and DSI in the subset of dialysis patients

Medication

• Antihypertensive drugs • Steroids or other immunosuppressive agents

COVID-19

• COVID-19 and severity before vaccination

BMI Body Mass Index, eGFR estimated Glomerular Filtration Rate, HbA1c Haemoglobin A1c, PCI Percutaneous Coronary Intervention, CABG Coronary Arterial Bypass Grafting, HIV Human Immunodeficiency Virus, PROMs Patient Reported Outcome Measures, SF-12 12-item Short Form health survey, DSI Dialysis symptom index, COVID-19 Coronavirus disease 2019