Table 2

Taxonomic comparison for 3 main bacterial taxa between frozen and unfrozen samples
Taxon F* UF1h* UF3h* p value F vs UF1h p value 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

Statistical analysis was performed using Poisson regression model; p value < 0.05 is considered significant; n = 4 subjects; * Values are mean proportion of sequences (%).

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.

Cardona et al.

Cardona et al. BMC Microbiology 2012 12:158   doi:10.1186/1471-2180-12-158

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