Table 2.
Richness and diversity in DR vs. HC.
| Study, Year | Chao 1 | Sobs | ACE | OTUs | Shannon | Simpson/invSimpson | Heip Evenness Index | Beta Diversity PCoA/PLS-DA |
|---|---|---|---|---|---|---|---|---|
| Zhou Z [21], 2021 |
↑ | - | - | ↑ | Not significant | - | - | Significantly different |
| Bai J [22], 2022 | Not significant | ↑ | ↑ Not significant | - | ↑ Not significant | Not significant | Not significant | Significantly different |
| Huang Y [19], 2021 | Not significant | - | Not significant | - | Not significant | ↓ | ↓ | Significant diversity |
| Das T [23], 2021 | Not significant | - | - | Not significant | ↓ | Not significant | - | Significant diversity |
| Moubayed NM [24], 2019 | - | - | - | Not significant | - | - | - | Significant diversity |
PCoA: principal coordinate analysis plot; PLS-DA: partial least-squares discriminant analysis; ↑: increased; ↓: decreased.