Table 2. Pairwise comparisons of isolates per food group in the diversity of clonal complexes^a.

Food Group: Shannon’s index	Produce	Seafood	Combination foods	Meat	Dairy
Produce: 2.32		p = 0.90	p = 0.20	p = 0.03	p = 0.22
Seafood: 2.14	p = 0.90		p = 0.83	p = 0.08	p = 0.05
Combination foods: 1.98	p = 0.20	p = 0.83		p = 0.27	p = 0.69
Meat: 1.58	p = 0.03	p = 0.08	p = 0.27		p = 0.87
Dairy: 1.49	p = 0.22	p = 0.05	p = 0.69	p = 0.87

^a Diversity of clonal complexes within a food group is represented by Shannon’s index. Pairwise comparison between two food groups is made by using Shannon’s index with Bonferroni correction, where p≤0.005 indicates a significant difference. No significant differences were found.