Before revision:  Setting: Community-based SARS-CoV-2 testing in England, individually linked with hospitalisation data from the Secondary Uses Service and the Emergency Care Data Set . Participants: 839,278 laboratory-confirmed COVID-19 patients, of whom 36,233 had been hospitalised within 14 days, tested between 23rd November 2020 and 31st January 2021 and analysed at a laboratory with an available TaqPath assay that enables assessment of S-gene target failure (SGTF).
After revision:  Setting: Community-based SARS-CoV-2 testing in England, individually linked with hospitalisation data . Participants: 839,278 laboratory-confirmed COVID-19 patients, of whom 36,233 had been hospitalised within 14 days, tested between 23rd November 2020 and 31st January 2021 and analysed at a laboratory with an available TaqPath assay that enables assessment of S-gene target failure (SGTF).