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Table 1 Univariate analysis of risk factors for cattle tuberculin reactors using General Linear models (GLM) with herd as random effect

From: Prevalence and risk factors for infection of bovine tuberculosis in indigenous cattle in the Serengeti ecosystem, Tanzania

Risk factors Proportional% (No/total) OR 95% CI ( p-value)
Sex     
Female 2.07 (15/724) 1.00* - -
Male 3.17 (12/379) 1.53 0.714; 3.29 0.27
Age     
<2 years 1.30 (3/231) 1.00* - -
2–4 years 3.6 (11/304) 11.10 1.449; 85.062 0.02
Over 4 years 2.3 (13/568) 4.96 0.642; 38.398 0.67
Location     
Serengeti 2.64 (15/569) 1.00* - -
Ngorongoro 2.94 (11/374) 1.12 0.508; 2.464 0.78
Bunda 0.63 (1/160) 0.23 0.030; 1.772 0.16
Animal tested     
1–20 3.5 (6/170) 1.00* - -
21–40 1.9 (5/265) 0.76 0.229; 2.545 0.66
≥ 41 2.4 (16/668) 0.81 0.292; 2.243 0.69
Household size     
1–5 1.30 (2/154) 1.00* - -
6–10 2.4 (6/248) 1.12 0.369;3.413 0.84
> = 11 2.7 (19/701) 0.56 0.198;1.603 0.28
  1. OR: Odds ration; CI: Confidence interval; p: p-value; *Reference level.