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. 2013 Dec 23;1:31. doi: 10.1186/2049-2618-1-31

Table 1.

Univariate association of major taxa with psoriasis status using Kruskal-Wallis ANOVA

Taxonomic level Taxon Kruskal-Wallis χ 2 df Median abundance
 FDR adjusted P value a
Control Unaffected Lesion
Phylum
 Bacteria;Acidobacteria
 18.68
 2
 0.97%*
 0.48%**
 0.18%***
 6.14E-04
Bacteria;Deinococcus-Thermus
 9.14
 2
 0.37%*
 0.22%**
 0.14%***
 2.41E-02
Bacteria;Otherb
 14.27
 2
 2.52%*
 2.20%**
 1.42%***
 2.79E-03
Bacteria;Proteobacteria
 7.42
 2
 33.32%**
 36.21%*
 30.75%***
 4.27E-02
Class
 Acidobacteria;Acidobacteria_Gp4
 14.08
 2
 0.92%*
 0.41%**
 0.12%***
 4.39E-03
Bacteroidetes;Sphingobacteria
 8.53
 2
 1.70%*
 1.50%**
 0.74%***
 3.52E-02
Deinococcus-Thermus;Deinococci
 9.14
 2
 0.37%*
 0.22%**
 0.14%***
 3.44E-02
Proteobacteria;Alphaproteobacteria
 7.63
 2
 16.44%*
 11.37%**
 7.64%***
 4.41E-02
Order
 Acidobacteria_Gp4;Gp4
 14.08
 2
 0.92%*
 0.41%**
 0.12%***
 5.70E-03
Sphingobacteria;Sphingobacteriales
 8.53
 2
 1.70%*
 1.50%**
 0.74%***
 3.05E-02
Alphaproteobacteria;Rhizobiales
 11.53
 2
 13.63%*
 7.94%**
 4.11%***
 1.36E-02
Betaproteobacteria;Burkholderiales
 8.80
 2
 9.33%**
 11.61%*
 5.95%***
 3.05E-02
Gammaproteobacteria;Xanthomonadales
 9.34
 2
 1.83%*
 1.23%**
 0.32%***
 3.05E-02
Family
 Gp4;Other
 14.08
 2
 0.92%*
 0.41%**
 0.12%***
 9.22E-03
Sphingobacteriales;Chitinophagaceae
 10.61
 2
 0.93%*
 0.56%**
 0.34%***
 1.74E-02
Bacillales;Bacillaceae
 11.75
 2
 0.61%*
 0.31%**
 0.09%***
 1.18E-02
Rhizobiales;Bradyrhizobiaceae
 12.95
 2
 2.21%*
 1.89%**
 0.73%***
 1.08E-02
Rhizobiales;Methylobacteriaceae
 12.07
 2
 8.43%*
 4.42%**
 2.39%***
 1.18E-02
Burkholderiales;Burkholderiaceae
 8.46
 2
 4.89%*
 4.68%**
 1.95%***
 3.82E-02
Burkholderiales;Comamonadaceae
 7.71
 2
 2.05%*
 1.64%**
 0.94%***
 4.94E-02
Xanthomonadales;Xanthomonadaceae
 9.61
 2
 1.79%*
 1.23%**
 0.31%***
 2.45E-02
Genus
 Gp4;Other
 14.08
 2
 0.92%*
 0.41%**
 0.12%***
 2.98E-03
Chitinophagaceae;Flavisolibacter
 14.32
 2
 0.22%*
 0.05%**
 0.02%***
 2.98E-03
Bacillaceae;Geobacillus
 8.03
 2
 0.06%*
 0.00%***
 0.00%***
 3.83E-02
Methylobacteriaceae;Methylobacterium
 12.19
 2
 8.43%*
 4.42%**
 2.39%***
 5.48E-03
Burkholderiaceae;Cupriavidus
 21.50
 2
 3.20%**
 3.38%*
 0.73%***
 1.83E-04
Comamonadaceae;Schlegelella
 25.21
 2
 0.64%*
 0.35%**
 0.05%***
 5.71E-05
Xanthomonadaceae;Other
 12.74
 2
 1.46%*
 0.39%**
 0.17%***
 4.85E-03
Operational taxonomical unit (OTU)
 Methylobacterium;484
 15.16
 2
 5.51%*
 2.65%**
 1.22%***
 1.66E-03
Gp4;3855
 16.95
 2
 0.72%*
 0.06%**
 0.00%***
 9.04E-04
Xanthomonadaceae;6162
 10.04
 2
 1.06%*
 0.16%**
 0.02%***
 1.72E-02
Cupriavidus;6869
 20.96
 2
 2.38%**
 2.40%*
 0.55%***
 1.83E-04
Schlegelella;13613
 26.57
 2
 0.47%*
 0.22%**
 0.00%***
 2.21E-05
  Methylobacterium;24283 9.11 2 1.02%* 0.74%** 0.34%*** 2.28E-02

Coding indicates high (*), intermediate (**), or low (***) abundance values in each row.

aOnly taxa significant at 5% FDR are shown.

bThis taxon represents all sequences that were not assigned to a known phylum. It is significant at all taxonomic levels.