Table 2 Significant differences in bacterial proportions at phylum- and class-level observed for the 90 mother-infant pairs studied at the time of delivery.

From: HIV-exposure, early life feeding practices and delivery mode impacts on faecal bacterial profiles in a South African birth cohort

 

Infants at birth (n = 90) Median (IQR)

Mothers at birth (n = 90) Median (IQR)

p-value

Phylum Proteobacteria

88.9 (72.8–96.2)

3.2 (1.2–8.9)

<0.001

  Alphaproteobacteria

7.6 (0.5–24.3)

0.1 (0.1–0.2)

<0.001

  Betaproteobacteria

15.9 (0.4–25.4)

0.1 (0.1–0.2)

<0.001

  Gammaproteobacteria

45.4 (10.2–75.3)

1.7 (0.8–7.4)

<0.001

Phylum Firmicutes

2.2 (0.9–16.8)

66.4 (57.3–77.2)

<0.001

  Bacilli

1.2 (0.5–4.6)

1.0 (0.4–2.6)

0.0001

  Clostridia

0.2 (0.1–1.7)

49.2 (38.8–61.3)

<0.001

  Erysipelotrichia

0.0 (0.0–0.1)

11.1 (7.1–13.9)

<0.001

Phylum Actinobacteria

4.0 (1.7–10.4)

14.5 (6.4–24.5)

<0.001

  Actinobacteria

3.7 (1.6–10.2)

11.2 (3.3–21.6)

<0.001

  Coriobacteriia

0.0 (0.0–0.1)

2.1 (1.4–3.3)

<0.001

Phylum Bacteroidetes

0.2 (0.0–0.7)

5.0 (1.7–12.3)

<0.001

  Bacteroidia

0.0 (0.0–0.1)

5.0 (1.7–12.3)

<0.001

  1. Bacterial proportions are rounded to one decimal point. Larger proportions of bacterial taxa are highlighted in bold.
  2. IQR: Interquartile range.
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