Figure 1.

Vaginal microbial community structure prior to rescue cerclage compared with gestation age‐matched controls. Relative abundance of bacterial genera and Lactobacillus spp. (shades of green) within the vaginal microbiota, inverse Simpson index (diversity), and classification by Lactobacillus spp. dominance; dominant (blue) >75%, intermediate (pink) 50–75%, and deplete (red) <50%. Women with premature cervical dilation compared with gestation age‐matched controls (closed cervix subsequent term delivery). The proportion of women with a vaginal microbiome with reduced (intermediate or deplete) Lactobacillus spp. abundance was significantly higher (P = 0.01) in women prior to rescue cerclage.