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Table 4 Multivariable logistic regression analysis of predictors of T. gondii infection in sheep of study districts

From: Seroepidemiological study of ovine toxoplasmosis in East and West Shewa Zones of Oromia Regional State, Central Ethiopia

Risk factors category Adjusted OR (95% CI) P-value
Altitude Low land 1.00 -
Mid land 4.54 (2.76, 7.49) <0.001
High land 4.11 (2.65, 6.36) <0.001
Sex Male 1.00 -
Female 1.60 (1.04, 2.43) 0.033
Age Young 1.00 -
Adult 2.93 (1.97, 4.35) <0.001
Flock Size Large (n ≥ 50) 1.00 -
Small (n < 50) 3.34 (1.26, 8.86) 0.016
Management type Extensive 1.00 -
SI 2.88 (0.96, 8.69) 0.060
Source of water Mixedb 1.00 -
Stagnantc 2.34 (0.69, 7.94) 0.174
River 4.18 (1.54, 11.35) 0.005
Tap 4.07 (1.07, 15.42) 0.039
Presence of cats No 1.00 -
Yes 1.11 (0.77, 1.60) 0.578
Management type*source of water SI* Stagnantc 1.23 (0.30, 5.09) 0.772
SI*river 3.64 (1.16, 11.43) 0.027
  SI*tap 2.12 (0.33, 13.42) 0.425
  1. b mixed = river, well, lake, pond; Stagnant c = pond, well, lake; * indicate interaction
  2. Factors associated with T. gondii seropositivity in study districts with their frequency (N), % Prevalence, adjusted odds ratio (aOR) and corresponding 95% confidence interval (95% CI) in the final multivariable logistic regression model (using 1130 sheep sera from 3 districts and 227 flocks); Hosmer-Lemshow χ2 = 4.03, P =0.779.