Table 3.
Diversity of bacterial ASVs at baseline and 18-month follow-up among age-matched cases and controls for seven separate growth criteria in the Mirzapur, Bangladesh cohort with at least 2,000 reads
| Case/Control Classification | Number of children | Mean among cases | Mean among controls | P-value* |
|---|---|---|---|---|
| Shannon (alpha) diversity at baseline | ||||
| ΔHAZ | 14 | 2.31 | 2.24 | 0.710 |
| ΔWAZ | 16 | 2.46 | 2.27 | 0.257 |
| ΔWFLZ | 18 | 2.42 | 2.26 | 0.328 |
| Shannon (alpha) diversity at 18 months | ||||
| ΔHAZ | 14 | 5.34 | 5.47 | 0.314 |
| ΔWAZ | 16 | 5.45 | 5.59 | 0.036 |
| ΔWFLZ | 18 | 5.41 | 5.48 | 0.473 |
| Beta diversity for ASV turnover from baseline to 18 months | ||||
| ΔHAZ | 14 | 1.00 | 1.00 | 0.172 |
| ΔWAZ | 16 | 1.00 | 1.00 | 0.430 |
| ΔWFLZ | 18 | 1.00 | 1.00 | 0.632 |
| Shannon (alpha) diversity at baseline | ||||
| Alpha-1-antitrypsin | 20 | 2.30 | 2.32 | 0.901 |
| Calprotectin | 16 | 2.28 | 2.12 | 0.340 |
| Myeloperoxidase | 8 | 2.26 | 2.30 | 0.885 |
| Neopterin | 16 | 2.11 | 2.48 | 0.016 |
| Shannon (alpha) diversity at 18 months | ||||
| Alpha-1-antitrypsin | 20 | 5.41 | 5.50 | 0.442 |
| Calprotectin | 16 | 5.33 | 5.40 | 0.521 |
| Myeloperoxidase | 8 | 5.35 | 5.37 | 0.918 |
| Neopterin | 16 | 5.36 | 5.44 | 0.618 |
| Beta diversity for ASV turnover from baseline to 18 months | ||||
| Alpha-1-antitrypsin | 20 | 1.00 | 1.00 | 0.162 |
| Calprotectin | 16 | 1.00 | 1.00 | 0.447 |
| Myeloperoxidase | 8 | 1.00 | 0.99 | 0.289 |
| Neopterin | 16 | 1.00 | 1.00 | 0.692 |
ASV = amplicon sequence variant; HAZ = height for age Z-score; WAZ = weight for age Z score; WFLZ = weight length or age Z-score.
Difference in mean diversity determined by Student’s t-test.