Table 3. Differences in levels of bacteria by qPCR during menstruation.

Bacterium	mean log10 adjusted difference (95% CI), p-value* during menstruation
Lactobacillus crispatus	−0.60 (−0.94, −0.25), p = 0.001
Lactobacillus jensenii	−0.39 (−0.79, 0.01), p = 0.06
Lactobacillus iners	0.10 (−0.23, 0.43), p = 0.56
Gardnerella vaginalis	1.38 (0.83, 1.93), p<0.001

Data shown for 16 subjects who reported days with and without menses during the study period.

Mean log₁₀ adjusted change, p-values, and 95% CIs (confidence intervals) estimated using a linear mixed model with participants as random effects and adjusted for treatment. We tested those patterns that appeared interesting upon examination of the data; thus, these p-values and 95% CIs arise from exploratory analyses and serve as a basis for future hypothesis-driven research.