Table 1 Summary of participation rates in the testing programme and response rates to the acceptance questionnaires.

From: Feasibility of a surveillance programme based on gargle samples and pool testing to prevent SARS-CoV-2 outbreaks in schools

Grade

Pupils

Consent provided

Classes included in testing

Questionnaire 3

Questionnaire 4

Abs

Rel (%)

Period 1

Period 2

Period 3

Period 4

Period 5

Abs

Rel (%)

Abs

Rel (%)

1

47

25

53.2

0/2

0/2

0/2

2/2

2/2

17/47

36.2

4/47

8.5

2

41

19

46.3

0/2

0/2

0/2

0/2

0/2

14/41

34.1

0/41

0,0

3

47

30

63.8

2/2

2/2

2/2

2/2

2/2

5/47

10.6

6/47

12.8

4

38

23

60.5

2/2

2/2

2/2

2/2

2/2

9/38

23.7

2/38

5.3

5

98

71

72.4

4/4

4/4

4/4

4/4

4/4

47/98

48.0

41/98

41.8

6

108

70

64.8

0/4

0/4

4/4

4/4

4/4

33/108

30.6

49/108

45.4

7

110

60

54.5

0/4

0/4

1/4

3/4

3/4

37/110

33.6

43/110

39.1

8

105

53

50.5

0/4

0/4

2/4

3/4

3/4

43/105

41.0

32/105

30.5

9

109

47

43.1

0/4

0/4

0/4

1/4

1/4

22/109

20.2

12/109

11.0

10

111

58

52.3

0/4

0/4

0/4

2/4

3/4

24/111

21.6

23/111

20.7

11

93

42

45.2

0/1

0/1

0/1

0/1

0/1

10/93

10.8

12/93

12.9

12

96

49

51.0

0/1

0/1

0/1

1/1

1/1

23/96

24.0

10/96

10.4

N/A

 

3

      

6

 

12

 

Total

1003

550

54.8

120/521

23.0%

124/536

23.1%

243/547

44.4%

404/552

73.2%

425/550

77.3%

290

28.9

246

24.5

  1. “Consent provided” indicates provision of written, informed consent for inclusion in the testing programme. “Classes included in testing” indicates that the minimum positive response rate threshold was reached, enabling inclusion of the class in the testing programme. Questionnaires 3 and 4 were distributed to all families, irrespective of participation in the testing programme. (Q1 and Q2 were employed as a part of the testing programme to select participants with an increased risk of infection.) Period 1: 2 to 14 December, 2021; Period 2: 1 (primary school) or 8 (secondary school) to 16 March, 2021; Period 3: 17 to 26 March, 2021; Period 4: 6 April to May, 2021; Period 5: 26 May to 16 June, 2021. “abs” = absolute (numbers of pupils). “rel” = relative (to the number of pupils in the class).
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