Table 4.

Correlation coefficients (r) and p-values (p) between cytosine–phospate–guanine (CpG) site 4 and the brain regions of interest investigated in patients with Attention Deficit Hyperactivity Disorder (ADHD) and healthy controls.

	ADHD (n = 18)	Healthy controls (n = 18)
Thalamus	r = −0.604	r = −0.073
	p = 0.008*	p = 0.8
Locus coeruleus	r = −0.510	r = 0.000
	p = 0.03	p = 1
Dorsal raphe nuclei	r = −0.614	r = −0.070
	p = 0.007*	p = 0.8
Medial raphe nuclei	r = −0.558	r = 0.100
	p = 0.01*	p = 0.7
Putamen	r = 0.175	r = −0.096
	p = 0.5	p = 0.8
Cerebellum	r = 0.018	r = −0.091
	p = 0.9	p = 0.7

An asterisk indicates the statistically significant regions