Fig. 4
From: Exploring the impact of probiotics on adult ADHD management through a double-blind RCT
Correlations between attention deficit hyperactivity disorder (ADHD) symptoms and academic grades and cortisol levels: Correlations between MOXO test results and fingernail cortisol levels (n = 19) and correlations between MOXO test results and academic grades (n = 24) in subjects receiving probiotics for three months. Colored dots display significant Spearman correlations - blue for negative relationships and red for positive. The intensity of the color corresponds to the strength of correlation as quantified by the correlation coefficient indicated inside each dot.
