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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.