Skip to main content

Table 4 Practices: How respondents use strain typing data a

From: Prospective evaluation of a complex public health intervention: lessons from an initial and follow-up cross-sectional survey of the tuberculosis strain typing service in England

   

Initial survey

Follow-up survey

 
   

n

%

n

%

Pc

Identify clusters and links between cases

81

65.3

97

78.2

0.024

 

Profession

Health protection

22

78.6

25

89.3

0.275

  

Physician

18

60.0

21

70.0

0.417

  

Nurse

41

62.1

51

77.3

0.058

 

TB incidenceb

Low

34

60.7

41

73.2

0.160

  

Medium

20

60.6

28

84.8

0.027

  

High

27

81.8

28

84.8

0.771

Disprove clusters and links between cases

58

46.8

73

58.9

0.056

 

Profession

Health protection

21

75.0

24

85.7

0.313

  

Physician

13

43.3

15

50.0

0.605

  

Nurse

24

36.4

34

51.5

0.079

 

TB incidenceb

Low

27

48.2

33

58.9

0.256

  

Medium

15

45.5

22

66.7

0.083

  

High

16

48.5

18

54.5

0.632

Justify extended contact tracing

51

41.1

60

48.4

0.250

 

Profession

Health protection

16

57.1

19

67.9

0.408

  

Physician

11

36.7

10

33.3

0.787

  

Nurse

24

36.4

31

47.0

0.217

 

TB incidenceb

Low

20

35.7

25

44.6

0.335

  

Medium

13

39.4

19

57.6

0.139

  

High

18

54.5

16

48.5

0.632

Justify stopping contact tracing

25

20.2

38

30.6

0.058

 

Profession

Health protection

13

46.4

13

46.4

1

  

Physician

3

10.0

5

16.7

0.448

  

Nurse

9

13.6

20

30.3

0.021

 

TB incidenceb

Low

9

16.1

18

32.1

0.047

  

Medium

8

24.2

13

39.4

0.186

  

High

8

24.2

7

21.2

0.771

To provide more information

34

27.4

44

35.5

0.171

 

Profession

Health protection

13

46.4

10

35.7

0.415

  

Physician

5

16.7

6

20.0

0.739

  

Nurse

16

24.2

28

42.4

0.027

 

TB incidenceb

Low

15

26.8

19

33.9

0.411

  

Medium

8

24.2

12

36.4

0.284

  

High

11

33.3

13

39.4

0.615

  1. aWhat do you use strain typing for? (multiple selections possible) (Don’t know / Identify clusters and links between cases / Disprove clusters and links between cases / Justify extended contact tracing / Justify stopping contact tracing / To provide more information / Other (please specify)).
  2. bArea where respondents worked is defined as low, medium and high TB incidence: <10/100,000, 10-19/100,000, ≥20/100,000 population, respectively.
  3. cchi2 test for significance comparing responses from the initial and follow-up surveys.