Measures Effect Variables

No of study Animals

Proportion of Salmonella Positive (95% CI)

χ²

P-Value

Non-Treated Group (Control)

30

19/30 (0.63), [0.44 - 0.80]

24.74

0.000

EM Feed Group (Treatment)

100

17/100 (0.17), [0.10 - 0.26]

Risk Difference (Absolute Risk)

*

0.46 (0.28 - 0.65)

Relative Risk

*

3.72 (2.21 - 6.27)

Relative Risk Reduction

*

0.73 (0.55 - 0.84)