Table 3.
Changes in relative abundances of bacteria, grouped by rank (family, genus, species), before and after vitamin C administration.
| Rank | Before vitamin C | After vitamin C | p-value | |||
|---|---|---|---|---|---|---|
| Median | IQR | Median | IQR | |||
| Family | Bacteroidaceae | 0.1508 | (0.0669, 0.2165) | 0.1001 | (0.0754, 0.1306) | 0.1982 |
| Bifidobacteriaceae | 0.0044 | (0.0010, 0.0342) | 0.0468 | (0.0328, 0.0704) | 0.0001 | |
| Lachnospiraceae | 0.1557 | (0.1088, 0.2091) | 0.1983 | (0.1456, 0.2336) | 0.0301 | |
| Oscillospiraceae | 0.0051 | (0.0023, 0.0101) | 0.0029 | (0.0014, 0.0049) | 0.2722 | |
| Ruminococcaceae | 0.1262 | (0.0492, 0.1946) | 0.1578 | (0.1019, 0.2239) | 0.7314 | |
| Genus | Bacteroides | 0.1508 | (0.0669, 0.2165) | 0.1001 | (0.0754, 0.1307) | 0.0501 |
| Bifidobacterium | 0.0044 | (0.0010, 0.0342) | 0.0468 | (0.0328, 0.0704) | 0.0001 | |
| Blautia | 0.0247 | (0.0113, 0.0332) | 0.0301 | (0.0179, 0.0542) | 0.2726 | |
| Dialister | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0023) | 0.2500 | |
| Enterococcus | 0.0000 | (0.0000, 0.0001) | 0.0000 | (0.0000, 0.0000) | 0.7695 | |
| Roseburia | 0.0251 | (0.0113, 0.0406) | 0.0138 | (0.0083, 0.0365) | 0.6650 | |
| Veillonella | 0.0000 | (0.0000, 0.0002) | 0.0000 | (0.0000, 0.0002) | 0.9219 | |
| Species | Akkermansia muciniphila | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0014) | 0.8125 |
| Bacteroides fragilis | 0.0003 | (0.0000, 0.0024) | 0.0003 | (0.0000, 0.0012) | 0.4954 | |
| Bacteroides vulgatus | 0.0350 | (0.0023, 0.0679) | 0.0370 | (0.0094, 0.0677) | 0.8288 | |
| Barnesiella intestinihominis | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0007) | 0.0313 | |
| Bifidobacterium adolescentis | 0.0000 | (0.0000, 0.0016) | 0.0000 | (0.0000, 0.0265) | 0.0029 | |
| Bifidobacterium animalis | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0154) | 0.0580 | |
| Bifidobacterium bifidum | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0116) | 0.0781 | |
| Bifidobacterium breve | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0000) | 0.3125 | |
| Bifidobacterium dentium | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0000) | 0.7500 | |
| Bifidobacterium longum | 0.0022 | (0.0000, 0.0160) | 0.0068 | (0.0000, 0.0235) | 0.0507 | |
| Bifidobacterium pseudocatenulatum | 0.0000 | (0.0000, 0.0004) | 0.0000 | (0.0000, 0.0007) | 0.3828 | |
| Christensenella minuta | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0000) | 0.0625 | |
| Collinsella aerofaciens | 0.0000 | (0.0000, 0.0063) | 0.0000 | (0.0000, 0.0266) | 0.0322 | |
| Faecalibacterium prausnitzii | 0.0630 | (0.0149, 0.0717) | 0.0573 | (0.0164, 0.0789) | 0.1601 | |
| Gemmiger formicilis | 0.0012 | (0.0000, 0.0099) | 0.0020 | (0.0000, 0.0111) | 0.4657 | |
| Holdemanella biformis | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0000) | 0.8750 | |
| Intestinibacter bartlettii | 0.0000 | (0.0000, 0.0005) | 0.0001 | (0.0000, 0.0020) | 0.0785 | |
| Prevotella copri | 0.0000 | (0.0000, 0.0000) | 0.0000 | (0.0000, 0.0000) | 0.2500 | |
| Streptococcus thermophilus | 0.0000 | (0.0000, 0.0006) | 0.0003 | (0.0000, 0.0022) | 0.3778 | |
Median and IQR of relative abundance (depicted on a scale 0–1) are shown, with bold p-values and bacterial names indicative of significant change.
IQR: Interquartile range.