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Table 2 Amalgamated national (Nigeria) tsetse trypanosome infection rates 1960–2017

From: A meta-analysis of the prevalence of African animal trypanosomiasis in Nigeria from 1960 to 2017

Attribute

Number of studies examined/total samples examined

Prevalence (95% CI) (%)

Measure of heterogeneity (Cochran’s Q)

% Variation; I2 (95% CI)

P-value

National

14 (12,552)

17.3 (4.5–36.0)

6287.77

99.8 (99.8–99.9)

P < 0.0001

 Northern region

9 (3107)

10.5 (5.1–17.5)

244.70

96.7 (95.3–97.7)

P < 0.0001

 Southern region

5 (9445)

30.4 (0.6–78.6)

487.95

99.9 (99.9–100)

P < 0.0001

G. morsitans

5 (4883)

49.7 (30.7–68.8)

310.55

98.7 (98.1–99.1)

P < 0.0001

 T. vivax

5 (4883)

36.8 (21.9–53.2)

221.35

98.2 (97.2–98.8)

P < 0.0001

 T. congolense

5 (4883)

5.9 (2.6–10.3)

52.02

92.3 (85.0–96.1)

P < 0.0001

 T. brucei

5 (4883)

0.2 (0.0–5.2)

6.60

39.4 (0.0–77.6)

P = 0.1586

G. tachinoides

11 (5793)

11.5 (6.1–18.5)

226.36

95.1 (93.1–96.6)

P < 0.0001

 T. vivax

10 (5646)

4.9 (1.0–11.4)

263.30

96.6 (95.1–97.6)

P < 0.0001

 T. congolense

10 (5646)

2.0 (0.5–4.5)

85.57

89.5 (82.8–93.6)

P < 0.0001

 T. brucei

10 (5646)

1.2 (0.2–3.2)

77.30

88.4 (80.7–93.0)

P < 0.0001

G. palpalis

11 (1874)

4.5 (1.6–8.8)

118.42

91.6 (86.9–94.6)

P < 0.0001

 T. vivax

6 (1610)

1.6 (0.3–3.9)

38.80

87.1 (74.3–93.6)

P < 0.0001

 T. congolense

5 (1546)

1.5 (0.0–5.2)

69.91

94.3 (89.5–96.9)

P < 0.0001

 T. brucei

5 (1546)

1.2 (0.0–5.2)

87.37

95.4 (91.9–97.4)

P < 0.0001

  1. Abbreviations: CI confidence interval, I inconsistency or variation