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Table 2 Relative abundance of dominant bacterial taxa in infant stool, according to household pets and siblings

From: Infant gut microbiota and the hygiene hypothesis of allergic disease: impact of household pets and siblings on microbiota composition and diversity

Taxon Overall Older siblings Pets Dog Cat
  N = 24 No Yes p No Yes p No Yes p No Yes p
  Mean (SD) n = 11 n = 13   n = 9 n = 15   n = 12 n = 12   n = 17 n = 7  
Actinobacteria               
Bifidobacteriaceae 39.6 (33.4) 40.9 38.6 - 58.8 28.1 0.03 46.7 32.6 - 48.0 19.3 0.03
Bifidobacterium 39.6 (33.4) 40.9 38.6 - 58.8 28.1 0.03 46.7 32.6 - 48.0 19.3 0.02
Coriobacteriaceae 1.4 (3.3) 0.3 2.3 0.07 2.2 0.9 - 2.0 0.8 - 1.7 0.6 -
Eggerthella 0.5 (1.0) 0.3 0.6 - 0.7 0.3 - 0.8 0.1 0.01 0.4 0.6 -
Bacteroidetes               
Bacteroidaceae 0.8 (1.5) 0.8 0.8 - 1.2 0.5 - 0.9 0.7 - 0.9 0.5 -
Bacteroides 0.8 (1.5) 0.8 0.8 - 1.2 0.5 - 0.9 0.7 - 0.9 0.5 -
Firmicutes               
Clostridiaceae 2.6 (7.2) 1.7 3.4 - 0.3 4.0 0.02 0.8 4.4 - 2.9 2.0 -
Clostridium 2.6 (7.2) 1.7 3.4 - 0.3 4.0 0.02 0.8 4.4 - 2.9 2.0 -
Enterococcaceae 1.5 (2.2) 1.7 1.3 - 0.9 1.8 - 0.7 2.3 0.09 1.6 1.1 -
Enterococcus 1.5 (2.2) 1.7 1.3 - 0.9 1.8 - 0.7 2.3 0.08 1.6 1.1 -
Erysipelotrichaceae 5.2 (8.7) 5.4 5.1 - 2.4 7.0 - 4.4 6.1 - 3.7 9.0 -
Lachnospiraceae 22.0 (22.0) 26.0 18.6 - 17.6 24.6 - 25.7 18.2 - 16.6 35.1 0.14
Blautia 3.0 (7.6) 5.4 0.9 - 0.6 4.4 - 0.7 5.2 - 0.9 8.1 -
Coprococcus 0.8 (2.6) 0.7 1.0 - 0.0 1.3 0.01 0.0 1.6 0.12 0.2 2.3 -
Peptostreptococcaceae 1.2 (2.0) 2.3 0.3 0.02 0.1 1.9 0.007 0.6 1.9 0.14 0.7 2.4 0.08
Ruminococcaceae 0.6 (1.1) 0.9 0.4 0.12 0.4 0.7 - 0.4 0.8 - 0.6 0.5 -
Streptococcaceae 5.7 (11.8) 2.5 8.4 - 3.3 7.1 - 3.0 8.4 - 4.9 7.6 -
Streptococcus 5.7 (11.8) 2.5 8.3 - 3.3 7.1 - 2.9 8.4 - 4.9 7.6 -
Veillonellaceae 4.7 (6.9) 5.2 4.3 - 1.2 6.8 0.02 1.6 7.8 0.02 3.4 7.7 -
Veillonella 4.6 (6.9) 5.0 4.3 - 1.2 6.7 0.02 1.6 7.6 0.03 3.4 7.7 -
Verrucomicrobia               
Verrucomicrobiaceae 0.6 (2.2) 0.9 0.3 0.06 0.4 0.7 - 0.3 0.9 - 0.8 0.0 0.01
Akkermansia 0.6 (2.2) 0.9 0.3 0.06 0.4 0.7 - 0.3 0.9 - 0.8 0.0 0.01
Proteobacteria               
Enterobacteriaceae 11.8 (11.1) 9.6 13.7 - 10.7 12.5 - 12.5 11.2 - 11.8 11.9 -
Escherichia_Shigella 10.5 (11.5) 8.8 11.9 - 10.4 10.5 - 12.3 8.7 - 10.4 10.7 -
Pasteurellaceae 0.2 (0.8) 0.1 0.3 - 0.0 0.4 0.09 0.1 0.4 - 0.2 0.2 -
Haemophilus 0.2 (0.8) 0.1 0.3 - 0.0 0.4 0.09 0.1 0.4 - 0.2 0.2 -
  1. SD, standard deviation. Differential abundance test conducted using Metastats algorithm. P-values >0.15 not shown. Taxa were excluded from this analysis if they did not exceed 1% relative abundance in at least 1 sample, or were not present in at least 3 infants.
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