Weekly incidence of COVID-19 death among patients undergoing in-facility HD without a recent history of SNF care (both panels), home dialysis (upper panel), in-facility HD with a recent history of SNF care (lower panel), or HD in an SNF (lower panel) from epidemiologic week 12 of 2020 to week 22 of 2021 (March 15, 2020 to June 5, 2021). Vertical lines separate the four intervals specified in risk models.