Table 4

Kruskal-Wallis (KW) rank sum test results for the analysis of the prevalence of Campylobacter spp. (C. coli and C. jejuni) by brand, plant, product, season, state and store
Nominal variables Campylobacter spp. P value
KW Test P value C. coli C. jejuni
Brand 30.52 <0.001 <0.001 0.006
Plant 43.98 <0.001 <0.001 0.124
Product 33.33 <0.001 0.596 <0.001
Season 1.64 0.649 0.034 0.068
State 34.08 <0.001 <0.001 0.014
Store 18.11 <0.001 <0.001 0.008
Year 7.34 0.289 <0.001 0.196

Williams and Oyarzabal

Williams and Oyarzabal BMC Microbiology 2012 12:184   doi:10.1186/1471-2180-12-184

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