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Table 1 Logistic regression variables

From: A longitudinal survey of African animal trypanosomiasis in domestic cattle on the Jos Plateau, Nigeria: prevalence, distribution and risk factors

Variable

Type of variable

Class of variable

Trypanosomiasis

Outcome variable

Binomial

positive = 1, negative = 0

Altitude

Predictor variable

Categorical, 12 categories

range 800 m – 1350 m

50 m increase per category

Dry season migration

Predictor variable

Binomial

yes = 1, no = 0

Wet season migration

Predictor variable

Binomial

yes = 1, no = 0

Alien migratory cattle*

Predictor variable

Binomial

  

yes = 1, no = 0

  1. *cattle domiciled elsewhere migrating along the cattle routes on the Jos Plateau.