Figure 2

β diversity measurements by Unweighted UniFrac (A) and Weighted UniFrac (B). Boxplots compare β diversity of gut microbiota in 40 days (40 d), 3 months (3 m), and 6 months (6 m) of age among breast-fed group, formula A-fed group, and formula B-fed group. Boxes show 25th–75th percentiles and the median line, and whiskers indicate minimum to maximum values. Statistical significance was evaluated by Wilcoxon test, using p ≤ 0.05 as the measure of significance.