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Table 2 Taxonomic comparison for 3 main bacterial taxa between frozen and unfrozen samples

From: Storage conditions of intestinal microbiota matter in metagenomic analysis

Taxon F* UF1h* UF3h* pvalue F vs UF1h pvalue F vs UF3h
Bacteroides;uncultured bacterium 19 13 9 0.044 9.68e-05
Prevotellaceae;uncultured;human gut metagenome 7 6 3 0.6804 0.0222
Bifidobacterium;uncultured bacterium 2 4 8 0.2257 0.0007
  1. Statistical analysis was performed using Poisson regression model; p value < 0.05 is considered significant; n = 4 subjects; * Values are mean proportion of sequences (%).
  2. F = frozen; UF1h = unfrozen during 1 h; UF3h = unfrozen during 3 h; Taxonomy is indicated at the genus level and if not possible at the family level.