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Table 4 Binary logistic regression estimation of risk factors associated with the prevalence of paratuberculosis in six districts of Uganda

From: Molecular and serological survey of paratuberculosis in cattle in selected districts of Western Uganda

Dependent variable: MAP infection status

Covariates

Odds ratio

Std. Err.

Z

P -value

95% CI

Breeding service

 Bull used only on farm

1.000

    

 Bull is shared

1.577

0.703

1.02

0.306

0.659, 3.778

 Artificial Insemination

2.797

2.232

1.29

0.198

0.659, 3.778

 Artificial Insemination & Bull

1.383

0.622

0.72

0.471

0.573, 3.41

Manure handling

 Taken to plantation

1.000

    

 Used in plantation or sold

0.496

0.245

−1.420

0.156

0.188, 1.307

 Left on the farm/pasture

1.027

0.269

0.100

0.918

0.615, 1.716

New stock introduced

 No

1.000

    

 Yes

1.172

0.307

0.600

0.546

0.700, 1.960

Length of dry season

 No or short dry spell

1.000

    

 Long dry spell

1.604

0.373

2.030

0.042

1.017, 2.531

Tree shade density

 Heavy canopy

1.000

    

 Intermediate

1.492

1.134

0.530

0.599

0.336, 6.619

 Sparse

1.893

1.422

0.850

0.395

0.434, 8.252

Water logging

 No

1.000

    

 Yes

1.027

0.268

0.100

0.918

0.616, 1.714

  1. The predicted probability of getting infected with MAP is 0.06 during the season of a long dry spell compared to 0.04 for a short or no dry spell. Other factors such as the breeding method, manure handling, or introduction of new stock did not exhibit significant association with paratuberculosis infection