Table 7 Knowledge about COVID-19 self-testing at baseline and mid- and end-points, among all participants

Where should you collect a sample from using a COVID-19 self-testing swab?

One nare, no more than 2-cm deep

29

2.19

21

1.42

11

0.73

Mouth and nose

27

2.04

7

0.47

6

0.4

Nose, does not matter how deep, but move the swab in circles

81

6.11

85

5.74

74

4.91

Nose, more than 2-cm deep

125

9.43

85

5.74

45

2.99

Two nares, no more than 2-cm deep

1064

80.24

1283

86.63

1371

90.98

What does a positive result mean?

Likely to be infected with COVID-19

1168

88.08

1361

91.9

1346

89.32

Not infected with COVID-19

93

7.01

86

5.81

110

7.3

Had COVID-19 in the past

42

3.17

24

1.62

27

1.79

Have a high likelihood of developing severe symptoms

10

0.75

6

0.41

18

1.019

Don’t know

13

0.98

4

0.27

6

0.4

What does the faint line in a COVID-19 self-test cassette mean?

Don’t have COVID-19

94

7.09

76

5.13

31

2.06

Have COVID-19 but cannot infect others

61

4.60

127

8.58

120

7.96

Might have COVID-19 and can infect others

711

53.62

878

59.28

1021

67.75

Need to repeat the COVID-19 self-test

417

31.45

380

92.66

307

20.37

False-positive result

43

3.24

20

1.35

28

1.86