Fig. 2

Differences in relative abundance of most important and variable genera in fecal microbiota among the first month of life. Each point represented the mean and SEM of relative abundance of each genus in that point from the fecal samples of babies born by cesarean section (blue), vaginal delivery at hospital (green), and at home (orange). Kruskal-Wallis test with a Dunn’s post hoc test was performed to compare the different groups. Data not sharing the same letter in each point were significantly different (p < 0.05). Significant variations within the same group at different time points were marked by an asterisk (*). C-section (CS, n = 65), hospitalized vaginal delivery (VAG, n = 92), and homebirth (HB, n = 23)