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Table 5 Logit binary logistic regression of tick and lice infestation in buffaloes in the municipality of Santarém, Amazon region, Brazil

From: Prevalence and risk factors associated with ectoparasite infestation of buffaloes in an Amazonian ecosystem

Variablea

Ticks

Lice

OR

95% CI

P b

OR

95% CI

P b

Age (months)

 1 to 12

5.99

2.48–14.51

0.001

Baseline

  

 13 to 24

1.05

0.42–2.64

0.922

3.83

1.83–8.01

0.001

 > 24

Baseline

  

2.07

0.95–4.53

0.069

Farm site

 Dry land

16.68

2.26–123.27

0.006

5.72

2.55–12.83

0.001

 Floodplain

Baseline

  

Baseline

  

Origin

 Bought

3.61

1.42–9.15

0.007

–

–

 

 Born on farm

Baseline

  

–

–

 
  1. aOnly factors that remained significantly associated in the final model (P < 0.05) are included
  2. bLogit binary regression analysis with Backward stepwise elimination in a hierarchic model. Hosmer-Lemeshow goodness-of-fit test: P = 0.233 (ticks), P = 0.480 (lice)
  3. Abbreviations: OR, odds ratio; CI, confidence interval
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Parasites & Vectors

ISSN: 1756-3305

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