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Table 4 Results of multivariate logistic regression analysis for Toxoplasma gondii seropositivity in pigs and cattle from Poland in relation to age, sex, farm size and rearing category

From: Toxoplasma gondii infection in slaughtered pigs and cattle in Poland: seroprevalence, molecular detection and characterization of parasites in meat

ParameterSpecies No. of animals (% seropositive)Odds ratio95% CIP-value
Age group (years)Cattle≤ 1a217 (9.2)1  
> 1–21241 (10.6)1.180.70–2.010.534
> 2–5446 (15.2)1.650.93–2.930.087
> 5–10297 (21.5)2.421.33–4.400.004
> 10133 (17.3)1.710.83–3.530.147
SexPigsMalea1054 (11.3)1  
Female1261 (12.5)0.730.43–1.240.247
CattleMalea1128 (11.3)1  
Female1009 (16.7)1.180.85–1.640.323
Farm sizePigsSmall (≤ 30 animals)1885 (16.6)3.892.04–7.40< 0.0001
Large (> 30 animals)a561 (6.6)1  
CattleSmall1566 (16.3)2.921.46–5.840.003
Largea164 (5.5)1  
Rearing categoryFattening pigsOpen production system farms690 (7.8)2.671.42–5.020.002
Closed production system farmsa323 (6.5)1  
  1. aReference group in analysis
  2. Abbreviation: CI, confidence interval