| Organism | Number | Percent |
| Ureaplasma urealyticum | 190 | 47.0 |
| Any gram-negative anaerobe | 155 | 38.4 |
| Mycoplasma hominis | 123 | 30.4 |
| Bacteroids bivius | 119 | 29.5 |
| Gardnerella vaginalis | 99 | 24.5 |
| Group B Streptococcus | 59 | 14.6 |
| Peptostreptococcus spp | 38 | 9.4 |
| Escherichia coli | 33 | 8.2 |
| Enterococci | 22 | 5.4 |
| Fusobacterium spp | 22 | 5.4 |
| Bacteroides fragilis | 14 | 3.5 |
