. Data analysis
The prevalence of Salmonella positive samples was reported as
the proportion of the 25-g-samples that tested positive, whereas
the prevalence of enterococci positive samples was reported as the
proportion of samples where enterococci was detected using a
detection limit of 100 CFU/g. Likelihood Ratio Tests compared differences
in prevalence between types of meat, types of packaging
and types of retailer. In cases with less than five observations,
Fisher’s Exact Test was used. All statistically significant differences
were reported at the P < 0.05 level. Exact 95% confidence intervals
(95% C.I.) were calculated based on standard methods for binomial
data