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Table 2 Operational taxonomic units (OTUs) contributing to the model discriminating patients based on smoking status

From: Influence of cigarette smoking on the human duodenal mucosa-associated microbiota

Contributing OTU Average relative abundancea
Phylum OTUb Current smokers Never smokers
Firmicutes Veillonella dispar (937248) 6.61 6.00
Bacteroidetes Prevotella sp. (2222) 0.33 1.58
Firmicutes Streptococcus sp. (1098340) 30.57 23.02
Firmicutes Streptococcus sp. (1088134) 4.25 3.43
Firmicutes Streptococcus sp. (1092300) 0.43 0.35
Firmicutes Streptococcus sp. (1097208) 0.37 0.28
Proteobacteria Neisseria sp. (1060621) 0.19 0.6
Proteobacteria Aggregatibacter sp. (963216) 0.16 0.15
Bacteroidetes Prevotella intermedia (72112) 0.48 0.29
Proteobacteria Neisseria sp. (1092944) 1.72 2.96
Bacteroidetes Prevotella sp. (851822) 0.72 1.00
Firmicutes Veillonella sp. (511378) 0.76 0.33
Proteobacteria Neisseria cinerea (1070334) 0.088 1.27
Firmicutes Veillonella dispar (NRO_21206) 0.11 0.18
Firmicutes Veillonella dispar (1019878) 0.63 0.61
Fusobacteria Fusobacterium sp. (809380) 0.2 0.27
Proteobacteria Haemophilus parainfluenzae (832223) 0.47 0.33
Proteobacteria Haemophilus parainfluenzae (920105) 0.77 0.71
Bacteroidetes Prevotella tannerae (38227) 0.71 0.23
Firmicutes Oribacterium sp. (527630) 0.19 0.52
  1. aThe average relative abundance (%) for each OTU is shown (for the FD-ID training set; data is not transformed). b The number in brackets refers to the Greengenes OTU reference number; NRO—new reference OTU)