Fig. 2

Heatmap of correlation coefficients between gut microbiota abundance and gastrointestinal diseases. Pink blocks represent an increase in the abundance of gut microbiota, which may be associated with an increased risk of developing outcome diseases. Blue blocks demonstrate gut microbiota abundance was negatively correlated with outcome diseases (P value < 0.05). Other blocks represent that there is no causal relationship between gut microbiota and gastrointestinal diseases (P value > 0.05)