Table 5 Demographics, exposure history, clinical manifestations, and risk factor analysis of hospitalized febrile patients with brucellosis, compared with non-brucellosis cases, at the Nork Hospital, 2010–2012

 Age group (years)

0.449

  18–27

19 (38)

245 (45)

–

  28–37

10 (20)

124 (23)

–

  38–47

9 (18)

53 (10)

–

  48–57

6 (12)

64 (12)

–

  ≥58

6 (12)

63 (12)

–

  Male

41 (84)

260 (47)

5.4 (2.5–11.8)

< 0.001

  Female

8 (16)

276 (50)

Reference

  Consumption of raw or unpasteurized milk

37 (76)

12 (3)

41.6 (806–201.5)

< 0.001

  Exposure to animals

20 (39)

8 (1.5)

45.2 (18.4–110.9)

< 0.001

  Engagement in agricultural activity

20 (41)

9 (1.6)

15.0 (4.0–55.7)

< 0.001

  Involvement in the slaughter of animals

11 (22)

6 (1)

13.0 (2.8–64.2)

< 0.001

  Contact with animal abortus materials

12 (24)

0 (0)

N/A

N/A

  Excessive sweating

45 (90)

113 (21)

33.8 (13.1–87.1)

< 0.001

  Joint pain

34 (68)

31 (6)

35.6 (17.7–71.4)

< 0.001

  Muscle soreness

17 (34)

59 (11)

4.3 (2.2–8.1)

< 0.001