Table 2. HAM-D scores and neurocognitive measures for MDD patients and controls.

	MDD Assessment I		MDD Assessment II		Normal Controls		‡Assessment I		‡Assessment II		§ Assessment I
							vs.		vs.		vs.
							Normal Controls		Normal Controls		Assessment II
	Mean ± SD	N	Mean ± SD	N	Mean ± SD	N	Z	p value	Z	Sig.	Z	p value
†HAM-D-17	23.23 ± 6.10	13	2.38 ± 2.84	13	0.38 ± 0.51	13	-4.41	< 0.01	-1.91	0.06	-3.18	< 0.01
†WMS-R
Verbal MEM.	81.33 ± 16.90	13	90.38 ± 15.23	13	96.18 ± 9.26	13	-2.53	< 0.05	-1.54	0.13	-2.33	< 0.05
Visual MEM.	78.92 ± 22.63	13	106.13 ± 20.99	13	111.18 ± 16.56	13	-2.93	< 0.01	-0.74	0.46	-2.52	< 0.05
General MEM.	76.08 ± 22.27	13	93.75 ± 14.92	13	100.55 ± 11.03	13	-2.90	< 0.01	-1.49	0.14	-2.38	< 0.05
Attention/Concentration	91.75 ± 18.22	13	99.70 ± 16.79	13	104.00 ± 14.13	13	-2.34	< 0.05	-1.14	0.25	-2.02	< 0.05
Delayed Recall	82.42 ± 22.67	13	102.25 ± 17.69	13	104.00 ± 15.40	13	-2.40	< 0.05	-0.37	0.71	-2.38	< 0.05
†FTT
Dominant hand	30.69 ± 15.03	13	31.99 ± 16.46	13	59.24 ± 10.85	13	-3.59	< 0.01	-3.3.2	<0.01	-1.61	0.11
†WCST
Perseverative Errors	10.50 ± 4.36	13	9.42 ± 3.40	13	4.50 ± 7.12	13	-2.37	< 0.05	-2.10	<0.05	-1.53	0.13
†CPT
d’ Masked	3.01 ± 0.94	13	3.47 ± 0.93	13	3.88 ± 0.64	13	-2.32	< 0.05	-1.00	0.32	-2.51	< 0.05

†HAM-D-17:17-item Hamilton Rating Scale for Depression; WMS-R: Wechsler Memory ScaleRevised; CPT: Continuous Performance Test; FTT: Finger Tapping Test; WCST: Wisconsin Card-Sorting test

‡Mann-Whitney Test

§Wilcoxon signed ranks test