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Table 1 IgD concentration based on dichotomous parameters such as signalment (sex, age and breed), L. infantum serology and IFN-γ production

From: Total serum IgD from healthy and sick dogs with leishmaniosis

Variable Group IgD concentration (ng/ml) Mann–Whitney test
Mean ± SD U-value Z-value P-value
Sex Male (n = 54) 391.33 ± 1873.22 1922 -0.37 0.7136
Female (n = 74) 41.4 ± 124.27
Age ≤ 18 months (n = 35) 14.85 ± 31.46 1960 -1.89 0.0583
> 18 months (n = 92) 259 ± 1442.28
Breed Purebred (n = 108) 177.81 ± 1302.62 1588 -0.44 0.6632
Mixed breed (n = 31) 168.69 ± 568.43
L. infantum serology Positive (n = 54) 351.08 ± 1855.6 2383 -0.51 0.6068
Negative (n = 93) 115.76 ± 534.48
IFN-γ production Producer (n = 63) 62.32 ± 194.48 2599 -0.18 0.8555
Non-producer (n = 84) 388.71 ± 1812.55
  1. Abbreviations: IgD, immunoglobulin D; IFN-γ, interferon gamma; n, number of dogs; SD, standard deviation