Table 3 Multivariable associations between potential risk factors and Brucella seropositivity among camels from 227 herds in southern Jordan using logistic regression analysis, likelihood ratio test

From: Camel milk is a neglected source of brucellosis among rural Arab communities

Variable*†

Category

A–priori adjusted OR (95% CI)1

p value

Fully adjusted OR

(95% CI)2

p value

Region

Ma’an

7.11

1.75 – 47.55

0.0050

6.23

1.53–41.81

0.0093

Age

>median (5 yr)

0.41

0.09 – 1.50

0.18

0.35

0.074–1.32

0.12

Sex

Female

3.56

0.64 – 66.50

0.17

3.86

0.68–72.73

0.14

Camels are purchased

Yes

4.32

1.19 – 20.20

0.026

3.84

1.04–18.09

0.043

Closed herd‡

Yes

0.00

NE

0.047

0.00

NE

0.072

  1. 1 Adjusted for a–priori variables: age, sex.
  2. 2 Adjusted for a–priori variables age and sex, region and camels are purchased.
  3. * 854 observations.
  4. † In the last year.
  5. ‡Singular variable, adjusted for region, age, sex and camels are purchased, 842 observations.
  6. NE non-estimable.
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