Comparison of taxa relative abundance in pre-PPI and post-PPI samples
| Bacteria* | Pre-PPI mean (SD) | Post-PPI mean (SD) | p Value |
| Phylum | |||
| Firmicutes | 70.70 (10.40) | 69.00 (10.40) | 0.5531 |
| Bacteroidetes | 20.60 (12.30) | 24.00 (10.70) | 0.0914 |
| Actinobacteria | 4.25 (4.76) | 2.35 (2.44) | 0.0059 |
| Proteobacteria | 2.51 (2.96) | 3.01 (2.55) | 0.2296 |
| Verrucomicrobia | 1.14 (4.22) | 1.10 (2.80) | 0.7726 |
| Euryarchaeota | 0.65 (1.75) | 0.20 (0.54) | 0.3242 |
| Tenericutes | 0.13 (0.44) | 0.22 (0.71) | 0.2708 |
| Cyanobacteria | 0.02 (0.08) | 0.04 (0.11) | 0.4591 |
| Family | |||
| Lachnospiraceae | 33.40 (20.50) | 28.60 (7.70) | 0.0059 |
| Ruminococcaceae | 20.50 (9.35) | 21.30 (7.98) | 0.6373 |
| Bacteroidaceae | 13.40 (10.70) | 14.90 (9.33) | 0.1961 |
| Streptococcaceae | 1.49 (1.91) | 5.93 (5.30) | 0.0009 |
| Prevotellaceae | 3.21 (8.23) | 4.09 (9.87) | 0.6814 |
| Erysipelotrichaceae | 4.09 (3.30) | 2.74 (3.69) | 0.0132 |
| Bifidobacteriaceae | 2.83 (4.39) | 1.39 (2.09) | 0.0275 |
| Rikenellaceae | 1.61 (1.23) | 2.14 (1.90) | 0.0914 |
Bold values indicate statistical significance at p<0.05.
*Table includes only the eight most commonly identified phyla and families.
PPI, proton pump inhibitor.