Table 3.

Mean +/–SD CSF and serum melatonin levels in patients with ADD and MCI and in healthy controls without values BLOQ

	ADD	MCI	Healthy controls	p
CSF melatonin [pg/ml]	5.38±2.44 (n = 16)	4.90±3.77 (n = 8)	3.78±0.90 (n = 4)	0.455
Serum melatonin [pg/ml]	5.13±2.78 (n = 14)	5.42±5.92 (n = 5)	5.35±4.31 (n = 2)	0.461