Table 1. Bivariate analyses of sociodemographic and clinical variables and in-hospital mortality.

COVID-19 hospitalizations in the Unified Health System in Brazil (N = 89,405). February to June 2020.

Variables	N	%	In-hospital death				χ2 (p-value)
			Yes		No
			N	%	N	%
Sex							< 0.0001
Male	50,520	56.5	12,867	25.5	37,653	74.5
Female	38,885	43.5	8,940	23.0	29,945	77.0
Age (years)							< 0.0001
18–39	13,028	14.6	1,113	8.5	11,915	91.5
40–49	13,556	15.2	1,730	12.8	11,826	87.2
50–59	17,724	19.8	3,234	18.2	14,490	81.8
60–69	19,098	21.4	5,363	28.1	13,735	71.9
70–79	15,593	17.4	5,615	36.0	9,978	64.0
80–89	8,483	9.5	3,775	44.5	4,708	55.5
≥ 90	1,923	2.1	977	50.8	946	49.2
Ethnic group							< 0.0001
White	21,260	23.8	4,635	21.8	16,625	78.2
Black	5,507	6.2	1,754	31.9	3,753	68.1
Mixed race	33,542	37.5	8,741	26.1	24,801	73.9
Yellow	3,071	3.4	595	19.4	2,476	80.6
Indigenous	152	0.2	44	28.9	108	71.1
Unspecified	25,873	28.9	6,038	23.3	19,835	76.7
Charlson Index							< 0.0001
0	86,131	96.3	20,560	23.9	65,571	76.1
1	2,552	2.9	898	35.2	1,654	64.8	.
≥ 2	722	0.8	349	48.3	373	51.7
Elixhauser comorbidities							< 0.0001
Yes	5,574	6.2	1,887	33.9	3,687	66.1
No	83,831	93.8	19,920	23.8	63,911	76.2
Obesity							< 0.0001
Yes	655	0.7	224	34.2	431	65.8
No	88,750	99.3	21,583	24.3	67,167	75.7
Hypertension							< 0.0001
Yes	3,794	4.2	1,273	33.6	2,521	66.4
No	85,611	95.8	20,534	24.0	65,077	76.0
Diabetes							< 0.0001
Yes	1,302	1.5	424	32.6	878	67.4
No	88,103	98.5	21,383	24.3	66,720	75.7
COVID-19 as secondary diagnosis							0.9408
Yes	2,777	3.1	679	24.5	2,098	75.5
No	86,628	96.9	21,128	24.4	65,500	75.6

Source: Ministry of Health–The SUS Inpatient Care Information System