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Table 1 Prevalence of Clostridium difficile shedding by slaughter age pigs in 5 difference Canadian provinces.

From: Clostridium difficile and methicillin-resistant Staphylococcus aureusshedding by slaughter-age pigs

Province

Number of pigs

Unadjusted prevalence (%) (95% CI)

Adjusted pig prevalence (%), (95% CI)

Farm prevalence

A

100

4.0 (1.5-10.2)

3.0 (0.5-15.9)

3/11 (27%)

B

50

26 (15.7-39.8)

26 (15.7-39.8)

5/5 (100%)

C

100

4.0 (1.5-10.2)

4.0 (1.5-10.2)

4/10 (40%)

D

106

0

0

0/11

E

80

11.3 (6.0-20.2)

3.0 (0.2-31.4)

3/8 (38%)

Total

436

6.9 (4.9-9.7)

3.4 (0.8-13.6)

15/45 (33%)