Skip to main content

Table 3 Comparing presymptomatic, symptomatic and true asymptomatic group (n = 199) of patients with COVID-19

From: The prevalence and clinical significance of Presymptomatic COVID-19 patients: how we can be one step ahead in mitigating a deadly pandemic

Characteristics

 

Presymptomatic

n = 43 (%)

Symptomatic

n = 53 (%)

True asymptomatic

n = 103 (%)

Total

n = 199

Gender

Female

18 (34.6)

14 (26.9)

20 (38.5)

52

Male

25 (17.0)

39 (26.5)

83 (56.5)

147

Age (years)

1–18

5 (22.7)

6 (27.3)

11 (50.0)

22

19–35

20 (18.1)

28 (25.5)

62 (56.4)

110

36–65

15 (28.3)

14 (26.4)

24 (45.3)

53

> 65

3 (21.4)

5 (35.7)

6 (42.9)

14

BMI**

< 18.5

1 (14.2)

3 (42.9)

3 (42.9)

7

18.5–22.9

12 (30.0)

4 (10.0)

24 (60.0)

40

23–26.9

5 (15.6)

14 (43.8)

13 (40.6)

32

> 27

9 (30.0)

5 (16.7)

16 (53.3)

30

Nationality

Local

29 (20.7)

39 (27.9)

72 (51.4)

140

Foreigner

14 (23.7)

14 (23.7)

31 (52.5)

59

Highest MEWS;

0

1 (50)

0 (0)

1 (50)

2

1

34 (21.7)

34 (21.7)

89 (56.6)

157

2

5 (15.6)

15 (46.9)

12 (37.5)

32

3

3 (50)

3 (50)

0 (0)

6

4

0 (0)

0 (0)

1 (100)

1

Category after re-evaluation

1

0 (0)

1 (1.1)

92 (98.9)

93

2A

27 (45.8)

32 (54.2)

0 (0)

59

2B

8 (40.0)

12 (60.0)

0 (0)

20

3A

5 (25.0)

4 (20.0)

11 (55.0)

20

3B

2 (100.0)

0 (0)

0 (0)

2

4A

1 (50.0)

1 (50.0)

0 (0)

2

4B

0 (0)

1 (100.0)

0 (0)

1

5

0 (0)

2 (100.0)

0 (0)

2

Cigarette smoker**

Yes

2 (13.3)

5 (33.3)

8 (53.3)

15

Reformed

1 (12.5)

4 (50.0)

3 (37.5)

8

No

24 (23.8)

20 (19.8)

57 (56.4)

101

Blood abnormalities on admission

Yes

10 (20.0)

15 (30.0)

25 (50.0)

50

No

33 (22.2)

38 (25.5)

78 (52.3)

149

Blood abnormalities during stay

Yes

11 (20.0)

18 (32.8)

26 (47.2)

55

No

32 (22.2)

35 (24.3)

77 (53.5)

144

Abnormal blood indices

CBC

RP

LFT

2 (33.3)

4 (20.0)

11 (20.0)

1 (16.7)

6 (30.0)

20 (36.4)

3 (50.0)

10 (50.0)

24 (43.6)

6

20

55

X-ray changes

Yes

10 (33.3)

9 (30.0)

11 (36.7)

30

No

33 (19.5)

44 (26.0)

92 (54.4)

169

CT thorax performed

Yes

8 (18.2)

11 (25.0)

25 (56.8)

44

No

35 (22.6)

42 (27.1)

78 (50.3)

155

Treatment

Yes

20 (44.4)

19 (42.2)

6 (13.3)

45

Days to negative PCR

Mean ± SD (Days)

16.9 ± 5.78

18.37 ± 7.37

15.26 ± 3.80

16.42 ± 5.50

p = 0.003***

  1. *Percentages calculated for each row equivalent to 100%
  2. **n = 199 for all variables except for BMI (n = 109), cigarette smoking (n = 124) and days to negative PCR (n = 196)
  3. ***one-way ANOVA whereby the mean difference is significant at the 0.05 level