Table 2. Average OTU sores in fecal samples.
| OTU | Bacteria predicted by T-RF length | Non-PTL (N = 20) | PTL (N = 11) | PTB (N = 10) | Bonferroni’sadjustmentP value | False DiscoveryRate P value |
| 106 | Clostridium subcluster XIVa | 1.85±0.75 | 0.33±0.27 | 0.19±0.13 | NS | NS |
| 110 | Clostridium cluster IV | 1.25±0.42 | 3.89±2.99 | 3.03±1.30 | NS | NS |
| 124 | Bifidobacterium | 11.19±1.98 | 14.10±4.08 | 5.91±2.61 | NS | NS |
| 168 | Clostridium cluster IV | 0.52±0.15 | 0.18±0.18 | 0.08±0.08 | NS | NS |
| 317 | Prevotella | 4.58±2.79 | 0.31±0.16 | 0.99±0.60 | NS | NS |
| 332 | Lactobacillares | 1.29±0.34 | 1.91±0.60 | 0.87±0.42 | NS | NS |
| 338 | Clostridium cluster IV | 0.57±0.16 | 0.37±0.19 | 0.00±0.00 | NS | NS |
| 366 | Bacteroides | 3.56±1.13 | 4.62±1.96 | 5.71±2.38 | NS | NS |
| 369 | Clostridium cluster IV | 0.27±0.18 | 0.89±0.86 | 2.76±1.32 | NS | NS |
| 469 | Bacteroides | 37.10±3.33 | 30.44±5.66 | 22.76±4.44 | NS | NS |
| 494 | Clostridium subcluster XIVa | 5.90±1.51 | 10.49±4.46 | 10.51±5.04 | NS | NS |
| 520 | Lactobacillares | 0.79±0.33 | 0.18±0.12 | 0.00±0.00 | NS | NS |
| 650 | Clostridium cluster XVIII | 2.12±0.34 | 0.70±0.35 | 0.26±0.21 | Non-PTL vs. PTB, P = 0.0016; non-PTLvs. PTL, P = 0.0150 | Non-PTL vs. PTB, P = 0.0125; non-PTL vs. PTL, P = 0.0449 |
| 657 | Lactobacillares | 5.18±2.54 | 17.63±8.29 | 24.24±7.17 | Non-PTL vs. PTB, P = 0.0497 | NS (P = 0.1089) |
| 749 | Clostridium cluster IV | 6.41±1.15 | 2.90±1.22 | 0.80±0.80 | Non-PTL vs. PTB, P = 0.0060 | Non-PTL vs. PTB, P = 0.0289 |
| 754 | Clostridium subcluster XIVa | 1.70±0.28 | 1.63±1.03 | 0.00±0.00 | NS | NS |
| 853 | Bacteroides | 0.84±0.13 | 0.60±0.27 | 0.07±0.07 | Non-PTL vs. PTB, P = 0.0087 | Non-PTL vs. PTB, P = 0.0348 |
| 919 | Clostridium cluster XI, Clostridium subcluster XIVa | 1.30±0.23 | 0.36±0.16 | 2.06±0.55 | PTL vs. PTB,P = 0.0047 | PTL vs. PTB, P = 0.0285 |
| 940 | Clostridium subcluster XIVa, Enterobacteriales | 3.79±0.68 | 3.62±1.10 | 11.43±3.72 | NS | NS |
| 955 | Clostridium subcluster XIVa | 5.37±0.64 | 1.72±0.80 | 0.34±0.34 | non-PTL vs. PTB, P = 0.0000; non-PTLvs. PTL, P = 0.0012 | non-PTL vs. PTB, P = 0.0005; non-PTL vs. PTL, P = 0.0125 |
| 990 | Clostridium subcluster XIVa | 3.61±0.69 | 2.87±0.86 | 7.98±6.66 | NS | NS |
| Others | 0.83±0.42 | 0.26±0.20 | 0.00±0.00 | NS | NS | |
OTU: operational taxonomic unit,
T-RF: terminal restriction fragment.
non-PTL: non-preterm labor.
PTL: preterm labor.
PTB: preterm birth.