Estimated glomerular filtration rate in post COVID-19 patients at 3–6 months and 12–18 months after infection

Background Some degree of renal impairment is common during acute COVID-19 infection. However, it remains unclear whether this impairment is temporary or persists long term. In this study we compare kidney function (via estimated glomerular filtration rate [eGFR]) during infection, 3–6 months and 12–18 months after infection; the relationship between patient characteristics and eGFR in post COVID-19 patients; and the difference in eGFR between post COVID-19 patients and controls.