Table 1.

A brief overview of Covid‐19 patients, acute kidney injury (AKI) and renal‐replacement therapies (RRT)

Authors	Cohort	Median age	Study site, time period	AKI frequency	RRT frequency
Guan et al 45	N = 1099 Hospitalized N = 55 ICU	47	552 hospitals, China, December 11, 2019 to January 29, 2020	Overall: 0.5%	Overall: 0.8%
Cheng et al 46	N = 701 Hospitalized N = 73 ICU	63	Tongji hospital, Wuhan, January 14 to February 11 2020	Overall: 5.1%	Not reported
Mohamed et al	N = 575 Hospitalized N = 105 ICU	65	Ochsner medical center, New Orleans March 1 to March 30, 2020	Overall: 28% ICU: 61%	Overall: 15.5% ICU: 44.5%
Cummings et al 47	N = 257 ICU only	62	New York, March 2 to April 2, 2020	Not reported	ICU: 31%
Hirsch et al	N = 5449 Hospitalized N = 1395 ICU	64	Northwell Health, NY March 1 to April 5	Overall: 37% Mechanically ventilated (N = 1190): 87.3%	Overall: 5.2% Mechanically ventilated: 23.2% a
Chan et al	N = 3235 Hospitalized N = 815 ICU	66.5	Mt Sinai, NY February 27 to April 15,2020	Overall, 43% ICU: 68%	Overall: 8.65% ICU: 34%
ICNARC database (report from July 3, 2020)	N = 9768 ICU only	60	NHS adult ICUs, England, Wales, Northern Ireland, March 1 to July 2, 2020	Not reported	ICU: 26.6%

^a Percentage of total intensive care unit (ICU) patients was not reported.