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