Table 3.

The numerically most abundant bacterial taxa in vaginal communities of 155 pregnant women during the first trimester in relation to history of spontaneous abortion.

Bacterial taxa	Number of prior abortions
	None	One	Two	Three
	N = 116	N = 26	N = 11	N = 2
L. crispatus	48.3%	38.5%	27.3%	50%
L. iners	9.5%	26.9%a	45.4%b	0%
L. gasseri	9.5%	23.1%	0%	0%
L. jensenii	8.6%	0%	0%	50%
Other lactobacilli	4.3%	0%	0%	0%
Gardnerella	12.1%	0%	27.3%	0%
Streptococcus	5.2%	0%	0%	0%
Other genera	2.5%	11.5%	0%	0%

The data are presented as the percentage of cases in which a specific taxa was numerically most abundant in each of the abortion categories.

^ap = 0.0240 vs. none; ^bp = 0.0049 vs. none.