Table 3. Proportions of five prominent genera in the vaginal microbiota of healthy women (H Group, week 0) and women with atrophic vaginitis before estrogen treatment (AV Group, week 0).

Phylotype	H group	AV group	pa
	Week 0	Week 0
Anaerococcus	1.8 ± 4.0	0.4 ± 0.8	>0.05
Atopobium	2.7 ± 6.9	4.8 ± 5.5	>0.05
Gardnerella	16.7 ± 21.7	41.7 ± 31.0	<0.0001b,c
Lactobacillus	53.2 ± 40.3	11.2 ± 16.4	<0.0001d
Prevotella	7.4 ± 13.3	6.0 ± 10.3	>0.05

^aStudent’s t-test was used to assess the statistical significance of differences in the relative proportions of species.

^bGardnerella was significantly more abundant in women of the AV Group as compared to women in the H Group (<0.0001).

^cIn women of the AV group Gardnerella was significantly more abundant than Lactobacillus (<0.0001).

^dLactobacillus was significantly more abundant in women of the H Group as compared to women in the AV Group (<0.0001).