1. A1 A2 B1 B2 C1 C2 C3 C4
Figure S1. Comparison of percentage relative abundances of polyamines taking country (A1) and mode of delivery (A2) as factors. Heatmap to show Pearson's correlation between polyamine and microbiota composition at class level (B1) and species level (B2). Heatmap to show Pearson's correlation between polyamine and microbiota composition in normal delivery samples (C1, C2) and caesarian samples (C3, C4) at class level (C1, C3) and species level (C2, C4). PUT – putrescine; SPD – spermidine; SPM – spermine; Total – total polyamines.