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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

From: Prevalence of Campylobacter spp. in skinless, boneless retail broiler meat from 2005 through 2011 in Alabama, USA

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