Fig. 4

The heatmap shows results from multilevel logistic regression analysis following ß Value for the effect on the performance indicators by variables contained in final model. The x-axis depicts the respective individual- and hospital-level variables and the y–axis performance indicators. The colour represents the effect size and direction of the correlation (p-value less than 0.05). Blue squares show positive changes in relative abundance, whereas red squares show negative correlations. The colour key shows intensity of the colour that correlates with the magnitude of the (log) change value