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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