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Table 1 Demographics and clinical variables of test cohort patients stratified by SARS-CoV-2 RT-PCR results

From: Automated diagnosis and prognosis of COVID-19 pneumonia from initial ER chest X-rays using deep learning

Variables

RT-PCR Positive (N = 236)

RT-PCR Negative (N = 220)

N = 456

Mean

SD

Mean

SD

Age (years)

55.3

17

49.2

16.3

BMI kg/m2

31.6

8.5

27.7

7.4

CXR–PCR Interval (days)

3.4

3.8

3.1

14.4

 

Count

Frequency (%)

Count

Frequency (%)

Sex

    

 Female

113

47.9

111

49.5

 Male

123

52.1

109

50.5

Ethnicity

    

 Asian

2

0.9

2

0.9

 Black

112

47.5

99

45.0

 Hispanic

17

7.2

0

0

 Other

9

3.8

6

2.7

 White

83

35.2

113

51.4

Smoking

    

 Never

155

65.7

93

42.3

 Former

19

8.1

73

33.2

 Current

54

22.9

54

24.5

COPD

22

9.3

10

4.5

Cystic fibrosis

1

0.4

0

0

Asthma

32

13.6

35

15.9

Lung cancer

2

0.8

0

0

Cancer (other)

36

19.2

29

13.2

Diabetes mellitus

92

39.0

48

21.8

Hypertension

148

62.3

114

51.8

Cardiac disease

26

11.0

52

23.6

Pulmonary HTN

23

9.7

6

2.7

Sickle cell disease

6

2.5

18

8.2

Thalassemia

0

0

0

0

Organ transplant

13

5.5

4

1.8

HIV

1

0.4

4

1.8

Autoimmune

15

6.4

14

6.4

Chronic liver disease

7

3.0

8

3.6

Chronic kidney disease

48

20.3

17

7.7

  1. SARS-CoV-2: Severe acute respiratory syndrome coronavirus 2; RT-PCR: Reverse transcription polymerase chain reaction; SD: Standard deviation; BMI: Body mass index; CXR: Chest X-ray; COPD: Chronic obstructive pulmonary disease; HTN: Hypertension; HIV: Human immunodeficiency virus