Table 1. Closely age-matched alpha- and beta-diversity results.

Age	Alpha-Diversity (Shannon Index [58])	Beta-Diversity
Mean: 11.9 [59]	Higher in Control	Difference
Mean: 9.3 [60]	Higher in ADHD	No Difference
6–10 [61]	No Change	No Difference
10 and 15 [62]	Higher in ADHD for 15, No Change for 10	No Difference
20.2 [63]	No Change	Difference (depends on metric)

Alpha- and beta-diversity results from ADHD gut microbiome studies of similar age groups.