Table 2.
Lactobacillus Content (>1%) as a Function of PTB Risk and Outcome.a
| Risk | Outcome | Number of Participants | Average % | SD |
|---|---|---|---|---|
| Low | PTB | 7 | 80.6 | 29.7 |
| Term | 32 | 93.0 | 17.0 | |
| SAB | 3 | 100 | 0 | |
| Total | 42 | 91.2 | 14.9 | |
| High | PTB | 10 | 87.9 | 31.1 |
| Term | 34 | 79.8 | 31.6 | |
| SAB | 2 | 61.0 | 53.7 | |
| Total | 46 | 76.2 | 38.8 | |
| All | PTB | 17 | 84.9 | 29.8 |
| Term | 66 | 84.5 | 28.2 | |
| SAB | 5 | 84.4 | 34.3 | |
| Total | 88 | 84.6 | 28.5 |
Abbreviations: PTB, preterm birth; SAB, spontaneous miscarriage; SD, standard deviation.
a Risk factor for PTB: low, high; outcomes: term (= full term), PTB, and SAB (= miscarriage). Each participant’s Lactobacillus content was calculated by averaging the Lactobacillus content of all of the participant’s available swabs.