Table 2.

Comparison between patients and controls (age, days since last menstruation, depressive symptoms)

	MDD patients		Healthy controls		t(83)	P
	M	SD	M	SD
Age [yrs.]	30	9	30	9	−0.22	0.83
Days since last menstruation
T1	14	9	13	9	0.26	0.80
T2	16	10	15	9	0.45	0.65
Depressive symptoms (PHQ-9)
T1	14.84	4.72	2.07	2.06	16.01	< 0.001
T2	10.26	5.01	2.1	1.74	9.99	< 0.001

PHQ-9, Patient Health Questionnaire for depressive symptoms. Further details are summarized in the “Results” section