Table 1.

Demographic and clinical characteristics of the study samples^*

Variable	Healthy Controls (n=107)	dMDD (n=58)	rMDD (n=27)	P
Age, y	36.2 (10.3)	38.8 (11.1)	40.2 (12.2)	0.13
Range	19–60	20–60	18–61
Gender (F:M)	60:47	37:21	21:6	0.11
MADRS	…	26 (7.6)	1.6 (2.3)	<0.001
Range		10–42	0–9
Duration of illness, y	…	18.4 (10.5)	15.1 (12.2)	0.20
Range		2–40	1–37
Drug naïve (%)	…	14 (24.1)	6 (22.2)	0.85
Time unmedicated, m	…	21.1 (31.1)	53.9 (60.9)	0.005
Range		1–130	3–240
Episode duration, m,	…	47.7 (74.1)	…	…
Range		1–384
Time remitted, m,	…	…	39.6 (41.7)	…
Range			3–156

Abbreviations: dMDD, currently depressed subjects; rMDD, currently remitted subjects; MADRS, Montgomery and Ǻsberg Depression Rating Scale; m, months; y, years.

^*Continous variables are reported as Mean (Standard Deviation)