Table 2.
The numerically most abundant bacterial taxa in the vaginal microbiota of pregnant women in the first trimester in relation to pregnancy history and race.
| Bacterial taxa | First conception | Prior conception but no births | Prior birth | White | Non-white |
|---|---|---|---|---|---|
| N = 52 | N = 26 | N = 77 | N = 84 | N = 67 | |
| L. crispatus | 76.4%a | 50.0%b | 22.1% | 46.4% | 38.8% |
| L. iners | 3.8%c | 19.2% | 20.8% | 7.1% | 10.4% |
| L. gasseri | 1.9% | 7.7% | 18.2%d | 10.7% | 11.9% |
| L. jensenii | 9.6% | 7.7% | 5.2% | 4.8% | 11.9% |
| Other lactobacilli | 0% | 0% | 6.5% | 3.6% | 0 |
| Gardnerella | 3.8%e | 15.4% | 14.3% | 8.3% | 10.4% |
| Streptococcus | 3.8% | 0% | 5.2% | 1.2% | 6.0% |
| Other genera | 0.7% | 0% | 7.7% | 3.6% | 7.5% |
The data are presented as the percentage of cases in which a specific taxa was numerically most abundant in each of the three categories of subjects.
ap = 0.0001 vs. prior delivery, 0.0217 vs. prior conception; bp = 0.0116 vs. prior delivery; cp = 0.0032 vs. prior delivery, 0.0378 vs. prior conception; dp = 0.0043 vs. first conception; ep = 0.0914 vs. prior conception, 0.0734 vs. prior delivery.