Alpha diversity of stool samples.

<p>Alpha-diversity, measured by observed species and Shannon diversity Index is plotted for patients with ADHD (red) and controls (green). The line inside the box represents the median, while the whiskers represent the lowest and highest values within the 1.5 interquartile range (IQR). Outliers as well as individual sample values are shown as dots. Statistical testing showed no difference for observed species (p_Observed = 0.25), while Shannon diversity was significantly decreased in ADHD compared to controls (p_Shannon = 0.036).