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Table 2 Prevalence of E. coli and associated risk factors

From: Bacteriological study of calf colisepticemia in Alage Dairy Farm, Southern Ethiopia

Risk factors

N

Positive

% Positive

95% CI

P value

Age

 < 30 days

24

5

20.8

(17.3–21.07)

 

 30–90 days

23

1

4.54

(3.45–6.13)

0.021

 Total

27

0

0.00

(0.00)

 

 > 90 days

74

6

8.11

(5.31–9.32)

 

Breed

 Holstein Frisian

56

5

8.93

(7.88–11.09)

 

 Borena

18

1

5.56

(6.14–8.54)

0.511

 Total

74

6

8.11

(9.46–11.86)

 

Parity of the dam

 One or two

19

5

26.3

(21.45–29.71)

 

 Three

30

1

3.33

(1.07–5.91)

0.023

 Above three

25

0

0.00

(0.00)

 

 Total

74

6

8.11

(4.98–10.88)

 

Sex

 Male

9

1

11.11

(12.31–15.31)

 

 Female

65

5

7.69

(7.99–11.03)

0.601

 Total

74

6

8.11

(9.35–11.61)

 

Faecal consistency

 Diarrheic

9

3

33.33

(30.11–36.13)

0.016

 Non diarrheic

65

3

4.62

(2.93–5.32)

 

 Total

74

6

8.11

(7.33–10.89)