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Table 4 Rotated factor patterns from principal component analysis (PCA) using proportions of taxa in sputum samples from children 6 months to <5 years (n = 263) or 5 to <18 years (n = 120)

From: Association of sputum microbiota profiles with severity of community-acquired pneumonia in children

Taxa Factor 1 Factor 2 Factor 3 Factor 4
Age 6 months to <5 years
Actinomyces sp. 0.84 0.01 −0.11 −0.09
Veillonella sp. 0.82 0.21 −0.11 −0.12
Rothia sp. 0.76 −0.17 −0.05 0.03
Lactobacillales order 0.64 0.03 −0.10 −0.03
Bacteroidales order 0.08 0.71 −0.10 −0.05
Prevotella sp. 0.30 0.63 −0.05 −0.09
Bacteroidetes phylum −0.16 0.53 −0.21 −0.12
Fusobacterium sp. −0.08 0.49 0.01 −0.03
Porphyromonadaceae family −0.02 0.47 −0.03 0.16
Leptotrichiaceae family 0.08 0.41 0.10 −0.16
Haemophilus sp. −0.19 −0.18 0.68 −0.11
Pasteurellaceae family −0.13 −0.19 0.62 −0.14
Streptococcus sp. 0.05 −0.33 −0.79 −0.25
Corynebacterium sp. −0.03 −0.06 −0.03 0.82
Dolosigranulum sp. −0.12 −0.12 −0.04 0.81
Age 5 to <18 years
Pasteurellaceae family 0.71 −0.09   
Haemophilus sp. 0.62 0.00   
Neisseria sp. 0.43 −0.14   
Rothia sp. −0.47 −0.30   
Veillonella sp. −0.57 0.35   
Porphyromonadaceae family −0.01 0.69   
Bacteroidales order −0.15 0.55   
Lactobacillales order −0.36 0.48   
Prevotella sp. −0.34 0.47   
Streptococcus sp. −0.36 −0.62   
  1. Taxa of interest for each factor are in bold