Table 1.

Outcomes of patients with coronavirus disease 2019 with and without CKD before and after propensity matching

Outcome			Risk Ratio (95% Confidence Interval)	P Value
Before Propensity Matching
	Coronavirus Disease 2019 with CKD, n=8810, % (n)	Coronavirus Disease 2019 without CKD, n=143,653, % (n)
Mortality	10.0 (883)	1.5 (2136)	6.7 (6.2 to 7.3)	<0.001
Ventilation	7.2 (633)	2.0 (2800)	3.7 (3.4 to 4.0)	<0.001
Hospitalization	42.8 (3771)	15.0 (10,611)	2.9 (2.8 to 2.9)	<0.001
After Propensity Matching
	Coronavirus Disease 2019 with CKD, n=7901, % (n)	Coronavirus Disease 2019 without CKD, n=7901, % (n)
Mortality	9.4 (744)	5.8 (462)	1.6 (1.4 to 1.8)	<0.001
Ventilation	7.1 (562)	4.1 (320)	1.8 (1.5 to 2.0)	<0.001
Hospitalization	41.5 (3275)	28.5 (2251)	1.5 (1.4 to 1.5)	<0.001
Severity Subgroups After Propensity Matching
	Coronavirus Disease 2019 with Severe CKD, n=2415, % (n)	Coronavirus Disease 2019 without Severe CKD, n=2415, % (n)
Mortality	9.8 (237)	6.0 (145)	1.6 (1.3 to 2.0)	<0.001
Ventilation	9.2 (222)	6.1 (147)	1.5 (1.2 to 1.9)	<0.001
Hospitalization	52.2 (1261)	32.5 (784)	1.6 (1.3 to 1.9)	<0.001
	Coronavirus Disease 2019 with Moderate CKD, n=5432, % (n)	Coronavirus Disease 2019 without Moderate CKD, n=5432, % (n)
Mortality	10.4 (564)	7.5 (407)	1.4 (1.2 to 1.6)	<0.001
Ventilation	6.9 (373)	5.1 (276)	1.4 (1.2 to 1.6)	<0.001
Hospitalization	43.4 (2358)	33.8 (1835)	1.3 (1.3 to 1.4)	<0.001
Need for KRT	2.7 (121)	0.8 (40)	3.5 (2.4 to 4.9)	<0.001
	Coronavirus Disease 2019 with Mild CKD, n=1536, % (n)	Coronavirus Disease 2019 without Mild CKD, n=1536, % (n)
Mortality	8.2 (126)	7.1 (109)	1.2 (0.9 to 1.5)	0.25
Ventilation	7.0 (107)	6.1 (93)	1.2 (0.9 to 1.5)	0.31
Hospitalization	40.2 (618)	35.4 (543)	1.1 (1.0 to 1.3)	0.005
Need for KRT	1.9 (30)	1.2 (19)	1.5 (0.8 to 2.8)	0.17