Factors associated with, and variations in, COVID-19 hospital death rates in England's first two waves: observational study.
Alex BottlePuji FaitnaStephen James BrettPaul AylinPublished in: BMJ open (2022)
England's first two COVID-19 waves were similar regarding predictors and moderate interhospital variation. Despite the challenges, variation in death rates and length of stay between hospitals was modest and might be accounted for by unobserved patient factors.