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Table 2 Diagnostic accuracy of the three serological tests, using Bayesian latent class models with non- informative prior distributions, except to prevalence values, for Portuguese and Brazilian dogs, given by posterior median and 95% credibility intervals

From: Leishmania exposure in dogs from two endemic countries from New and Old Worlds (Brazil and Portugal): evaluation of three serological tests using Bayesian Latent Class Models

 

Prevalence median (95% CI)

Serological tests

Sensitivity median (95% CI)

Specificity median (95% CI)

PPV median (95% CI)

NPV median (95% CI)

Portuguese dog population

 

Leishmania infantum IgG ELISA®

88.5 (72.5–97.3)

92.5 (88.0–95.9)

64.4 (47.1–79.1)

98.2 (95.1–99.6)

13.4 (9.0–18.7)

EIE-LVC®

85.2 (67.7–95.7)

99.1 (96.8–99.9)

93.3 (78.4–99.4)

97.8 (94.6–99.4)

 

DPP-LVC®

96.6 (83.1–99.9)

99.1 (96.6–100.0)

94.3 (79.5–99.7)

99.5 (97.2–100.0)

Brazilian dog population

 

Leishmania infantum IgG ELISA®

79.9 (61.3–95.9)

98.7 (95.1–99.9)

94.5 (79.3–99.7)

94.7 (88.3–99.1)

21.6 (15.0–28.3)

EIE-LVC®

88.2 (73.7–97.0)

81.8 (74.3–88.1)

56.9 (41.5–71.1)

96.3 (90.6–99.1)

 

DPP-LVC®

85.7 (70.7–96.0)

90.7 (84.3–95.7)

71.6 (53.7–86.7)

95.9 (90.6–99.0)

  1. Deviance information criterion: 69.96; pD = 10.07
  2. Prior information for prevalence: uniform (0, 0.30)
  3. CI credibility intervals, IgG immunoglobulin G, ELISA enzyme-linked immunosorbent assay, EIE-LVC® ELISA canine visceral leishmaniosis test, DPP-LVC® Dual Path Platform canine visceral leishmaniosis test, PPV positive predictive value, NPV negative predictive value