Table 1.

Demographic and behavioral comparisons between P+SSRI non-responders and remitters

Variable	P+SSRI non-responders (n = 9)	Remitters (n = 36^*)	Test	p Value
Age, Years	43.8(8.0)	41.1(9.0)	t=−.830	.411
Duration of Current Episode, Weeks	156.6(250.7)	132.3(113.5)	t=.791	.791
Baseline HDRS	19.0(3.5)	18.5(3.1)	t=−.441	.661
Age of MDD Onset, Years	28.2(8.5)	27.8(12.1)	t=−.094	.926
Baseline HAMA	14.7(6.3)	14.0(2.9)	t=−.456	.650
Baseline BDI	21.6(3.0)	20.0(7.4)	t=−.611	.544
CTQ Total	40.3(10.3)	46.4(14.6)	t=.1.173	.247
Education, Years	15.0(1.8)	16.0(1.7)	t=1.357	.183
Gender, Female/Male	4/5	17/19	χ²=.200	.655
Treatment arm, CBT/sCIT	4/5	19/17	χ²=.200	.655
Current anxiety disorder No/Yes	7/2	26/10	χ²=.114	.736
Lifetime Substance Use Absent/Subthreshold/Threshold	4/3/2	21/10/5	χ²=.648	.723
Current MDD, None/Melancholic/Atypical	3/4/2	12/16/7	χ²=.022	.989
Previous Medication, No/Yes	1/8	10/26	χ²=1.083	.298
Previous Psychotheraphy, No/Yes	5/4	17/19	χ²=.200	.655
Lifetime PTSD, No/Yes	9/0	33/3	χ²=.804	.370
Married or Cohabitating, No/Yes	5/3	14/21	χ²=1.337	.248
Employed Full Time, No/Yes	4/4	15/20	χ²=.135	.714
First Degree Family History, No/Yes	3/5	24/11	χ²=2.691	.101
Race, White/Black/Hispanic	8/0/0	26/5/4	χ²=2.602	.272
Lifetime Episodes, 1/2/3+	3/3/3	10/11/14	χ²=.145	.930

Data are mean (SD) except as noted. Included only patients with available PET scans. HDRS, Hamilton Depression Rating Scale; HAMA, Hamilton Anxiety Scale; BDI, Beck Depression Inventory; CBT, cognitive behavior therapy; sCIT, escitalopram; PTSD, Post traumatic stress disorder

Demographic and behavior data were available for all 36 remitters, PET scans were only available for 35 remitters.