Measure Effect Variables

No of study Animals

Prevalence of Salmonella (%), 95% CI*

χ²

P-Value

Non-Treated Group(Control)

30

16/30 (0.53), [0.34 - 0.72]

11.85

0.000

EM Feed Group (Treatment)

100

21/100 (0.21), [0.13 - 0.30]

Risk Difference (Absolute Risk)

*

0.32 (0.14 - 0.51)

Relative Risk

*

2.54 (1.49 - 4.33)

Relative Risk Reduction

*

0.61 (0.33 - 0.77)