TABLE 2.
Vaginal microflora summarya
| Organism(s) | Value for gestation time of:
|
|||
|---|---|---|---|---|
| <37 weeks
|
≥37 weeks
|
|||
| Frequency of isolationb | No. of organismsc | Frequency of isolationb | No. of organisms | |
| All anaerobes | 8.33 ± 1.47 | 8.38 ± 1.57 | ||
| All aerobes | 7.24 ± 2.21 | 7.12 ± 2.29 | ||
| Corynebacterium spp. | 26/36 | 4.50 ± 0.87 | 212/193 | 4.66 ± 0.88 |
| Lactobacillus sp.d | 75/36 | 7.82 ± 1.43 | 377/193 | 7.99 ± 1.30 |
| H2O2 positive | 40/36 | 7.69 ± 1.50 | 195/193 | 8.25 ± 1.21e |
| H2O2 negative | 25/36 | 7.49 ± 1.42 | 119/193 | 7.60 ± 1.36 |
| Gardnerella vaginalis | 13/36 | 8.78 ± 1.30 | 55/193 | 8.90 ± 1.28 |
| Prevotella spp. | 44/36 | 5.98 ± 1.62 | 177/193 | 5.72 ± 1.80 |
| Prevotella bivia | 8/36 | 5.83 ± 1.50 | 42/193 | 5.53 ± 1.50 |
| Peptostreptococcus spp. | 32/36 | 5.30 ± 1.40 | 134/193 | 5.44 ± 1.43 |
| Peptostreptococcus assacharolyticus | 16/36 | 5.23 ± 1.35 | 55/193 | 5.05 ± 1.26 |
| Peptostreptococcus magnus | 10/36 | 5.23 ± 1.40 | 44/193 | 5.41 ± 1.55 |
| Peptostreptococcus prevotii | 2/36 | 5.70 ± 0.40 | 23/193 | 6.13 ± 1.08 |
| Staphylococcus spp. | 43/36 | 4.14 ± 0.69 | 226/193 | 4.18 ± 0.70 |
| Streptococcus spp. | 37/36 | 5.62 ± 1.66 | 111/193 | 4.99 ± 1.32 |
| Mycoplasma hominis | 7/36 | 6.15 ± 0.81 | 36/193 | 6.03 ± 1.02 |
| Ureaplasma urealyticum | 5/36 | 6.26 ± 0.88 | 45/193 | 5.86 ± 0.73 |
a
Vaginal pH and Nugent scores were as follows (values are means ± standard deviations): for a gestation period of <37 weeks, 4.76 ± 0.78 and 2.8 ± 2.75, respectively, and for a gestation period of >37 weeks, 4.74 ± 0.79 and 2.45 ± 2.60, respectively.
b
Values are numbers of observations/numbers of subjects.
c
Values are log10 CFU/gram of sample ± standard deviations.
d
A total of 10 strains in the preterm group and 63 strains in the term group were not characterized for H2O2 production.
e
P < 0.01 when compared to value for gestation period of <37 weeks.