Table 1.

Variations in bacteria found in faecal matter between healthy and CRC patients or patients with advanced adenomas and removed polyps, or Inflammatory Bowel Disease (IBD) patients [83,84,85,86]. [↑]: increased abundance, [↓]: decreased abundance.

		Healthy Individuals	CRC Patients	Advanced Adenoma & Removed Polyp patients	IBD Patients
Microbiota	Phylum level	Firmicutes ↑	Proteobacteria ↑		Firmicutes ↓
		Actinobacteria ↑	Fusobacteria ↑		Proteobacteria ↑
			Lentisphaerae ↑
	Genus level		Escherichia – Shigella ↑		Clostridium ↑
			Parvimonas ↑
			Fusobacterium ↑
			Porphyromonas ↑
			Staphylococcus ↑
			Pepto-streptococcus ↑
			Peptococcus ↑
	OTUs	Firmicutes ↑	Gamma-proteobacteria ↑	Adlercreutzia ↑	F. prausnitzii ↓
		Clostridiales ↑	Enterobacteriaceae ↑		B. adolescentis ↓
		Clostridia ↑	Fusobacteriales ↑		D. invisus ↓
		Lachnospiraceae ↑	Erysipelotrichaceae ↑		Clostridium defficil (cluster XIVa) ↓
		Ruminococcaceae ↑	Lachnospiraceae ↓		R. gnavus ↑
		Selenomonadales ↑			Lactobacilli ↑
		Negativicutes ↑			Adherent-invasive E. coli ↑
		Faecalibacterium ↑			Adherent-invasive Campylobacter concisus ↑
					Enterotoxigenic B. fragilis (ETBF) ↑
					B. vulgatus ↑
					Fusobacterium varium ↑
					Klebssiella pneumonie ↑
					Roseburia hominis ↓
					Faecalibacterium ↓
					Mycobacterium anium paratuberculosis ↑