Table 1 Baseline characteristics of patients with a positive test for SARS-CoV-2 in the VA healthcare system, by age group

Sex

< 0.001

 Women, %

26.2

3.8

2.2

16.7

 Men, %

73.8

96.2

97.8

83.3

Race

< 0.001

 White, %

51.7

72.5

77.2

60.8

 Black, %

23.4

18.3

12.8

20.8

 Other, %

3.3

2.1

1.7

2.7

 Missing/Unknown

21.5

7.1

8.3

15.6

Ethnicity

< 0.001

 Non-Hispanic

69.4

89.6

89.7

77.8

 Hispanic

11.9

6.3

5.3

9.5

 Missing/Unknown

18.7

4.2

5

12.7

Body mass index (kg/m²)

< 0.001

 <18.5 (underweight), %

0.4

1.2

2.7

0.9

 18.5-24.9 (normal weight), %

9.9

16

33.4

14.1

 25.29.9 (overweight), %

25.7

34.2

37.2

29.5

 30-34.9 (Obese I), %

26.2

27.6

17.1

25.8

 ≥35 (Obese II and III), %

23.4

19.4

6.2

20.5

 Missing, %

14.5

1.6

3.4

9.3

Charlson Comorbidity Index (median (IQR))

0.0 (0.0,2.0)

3.0 (2.0,6.0)

4.0 (2.0,7.0)

1.0 (0.0,4.0)

< 0.001

Charlson Comorbidity Index (%)

< 0.001

 0

54.6

11.2

8.8

36.3

 1

18.3

12

9.5

15.5

 2-3

16.4

27.5

24.2

20.7

 ≥4

10.7

49.3

57.5

27.6

Median (IQR)

18-64 years

65-79 years

≥80 years

 Hospital LOS

5 (3-9)

7 (4-14)

9 (5-15)

 ICU (LOS)

4 (2-8)

5 (3-10)

5 (2-9)