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. 2021 Jan 29;113(3):602–611. doi: 10.1093/ajcn/nqaa361

FIGURE 2.

FIGURE 2

Shannon diversity of bacterial classes at 20–26 weeks of gestation in women who spontaneously delivered preterm (n = 16) relative to those with term deliveries (n = 32). (A) The composition of mean Shannon diversity by bacterial class. (B) Shannon diversity of Betaproteobacteria in SPTB compared with term (Wilcoxon's rank-sum test, false discovery rate < 0.2). In each plot the bar is the median value, and the whiskers indicate the 25% and 75% distribution. (C) AUC in a receiver operating characteristic analysis using a logistic regression model to predict SPTB with the contribution of Shannon diversity of Betaproteobacteria (AUC = 0.71) and of the overall microbiota (AUC = 0.69). SPTB, spontaneous preterm birth.