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Table 4 Univariate meta-regression analysis of factors for the prevalence of trypanosome infection based on the laboratory experimental studies with dissection method used for diagnosis of trypanosome infection

From: A systematic review and meta-analysis of trypanosome prevalence in tsetse flies

Variables

Prevalence (%)

Odds ratio

Estimate

95% CI

Estimate

95% CI

p-value

Year of publication

-

 

-

0.996

0.99

1.00

0.184

Country

 Zimbabwe

54.5

52.2

56.8

Ref

   

 Kenya

50.9

31.7

70.0

0.96

0.62

1.51

0.866

 Zambia

44.3

42.0

46.6

0.90

0.49

1.65

0.726

 Uganda

21.4

14.9

27.9

0.71

0.45

1.15

0.155

 Belgium

20.8

13.9

27.8

0.72

0.44

1.18

0.181

 United Kingdom

20.5

0.0

41.3

0.71

0.43

1.17

0.171

 Burkina Faso and Zimbabwe

20.1

9.1

31.0

0.71

0.42

1.22

0.192

 France

14.5

11.6

17.3

0.67

0.37

1.22

0.181

 Burkina Faso

10.0

8.4

11.5

0.64

0.38

1.08

0.093

Glossina sample type

 Proboscis

56.1

43.3

68.8

Ref

   

 Mid gut and salivary gland

32.7

0.0

76.3

0.80

0.59

1.09

0.145

 Salivary gland

22.3

16.8

27.8

0.71

0.58

0.89

0.004

 Mid gut and proboscis

20.2

13.5

26.9

0.70

0.56

0.89

0.005

 Mid gut

19.0

0.0

51.4

0.69

0.53

0.89

0.007

 MPS

17.6

10.1

25.1

0.71

0.56

0.89

0.006

 Salivary gland and proboscis

9.8

5.6

14.0

0.63

0.42

0.95

0.028

Glossina species

  G. brevipalpis

51.9

0.0

100.0

Ref

   

  G. tachinoides

40.2

37.2

43.3

0.89

0.48

1.66

0.698

  G. morsitans

37.9

23.6

52.2

0.87

0.59

1.28

0.455

  G. fuscipes

31.7

11.2

52.2

0.82

0.49

1.36

0.415

  G. austeni

31.5

28.7

34.2

0.81

0.44

1.52

0.499

  G. palpalis

31.0

23.4

38.7

0.796

0.52

1.22

0.278

  G. pallidipes

11.9

0.0

24.0

0.67

0.42

1.07

0.088

  Mixed

10.0

8.4

11.5

0.66

0.35

1.22

0.174

  1. MPS Mid gut, proboscis and salivary gland