Table 3.

Comparison of parameters of the EST between MDD and HC groups. MRT: mean reaction time; ΔMRT: adjusted MRT; NEU: neutral words; POS: positive words; NEG: negative words; -C: congruent; -I: incongruent.

	Baseline		t/Z	p	Follow-up		t/Z	p	MDD (baseline vs follow-up)		HC (baseline vs follow-up)
	MDD n = 48	HC n = 33			MDD n = 35	HC n = 22			t/Z	p	t/Z	p
NEU
MRT(ms)	690 ± 207	476  ±  102	6.16	<0.01	532 ± 114	460 ± 73	2.64	0.01	4.44	<0.01	0.64	0.52
Accuracy	0.97  ±  0.04	0.98 ± 0.02	0.59	0.56	0.98 ± 0.03	0.98 ± 0.02	0.75	0.46	1.25	0.22	0.05	0.96
ΔMRT(ms)	708 ± 210	486 ± 99	6.37	<0.01	542  ± 117	471 ± 77	2.77	<0.01	4.60	<0.01	0.62	0.54
POS-C
MRT(ms)	670 ± 170	490 ± 132	5.14	<0.01	539  ± 109	455 ± 63	3.28	<0.01	4.02	<0.01	1.30	0.20
Accuracy	0.97 ± 0.06	0.99 ± 0.02	2.12	0.04	0.98 ± 0.03	0.98 ± 0.03	0.64	0.53	1.21	0.23	1.79	0.08
ΔMRT(ms)	692 ± 174	494 ± 132	5.52	<0.01	548 ± 114	465 ± 65	3.51	<0.01	4.27	<0.01	1.10	0.28
POS-I
MRT(ms)	658 ± 162	495 ± 135	4.75	<0.01	538 ± 98	462 ± 71	3.16	<0.01	3.87	<0.01	1.05	0.30
Accuracy	0.97 ± 0.07	0.98 ± 0.03	1.37	0.12	0.98 ± 0.04	0.98 ± 0.02	0.02	0.83	1.29	0.20	0.52	0.60
ΔMRT(ms)	683 ± 170	506 ± 145	4.88	<0.01	549 ± 100	469 ± 73	3.46	<0.01	4.18	<0.01	1.25	0.22
NEG-C
MRT(ms)	693 ± 217	475 ± 112	5.93	<0.01	573 ± 149	462 ± 77	3.70	<0.01	2.83	<0.01	0.48	0.63
Accuracy	0.97 ± 0.04	0.98 ± 0.03	0.73	0.47	0.98 ± 0.03	0.98 ± 0.05	0.11	0.91	1.34	0.19	0.30	0.77
ΔMRT(ms)	714 ± 226	485 ± 110	6.09	<0.01	584 ± 155	470 ± 73	3.74	<0.01	2.94	<0.01	0.54	0.59
NEG-I
MRT(ms)	695 ± 209	475 ± 94	6.43	<0.01	531 ± 113	466 ± 75	2.40	0.02	4.62	<0.01	0.39	0.70
Accuracy	0.98 ± 0.04	0.98 ± 0.03	0.45	0.66	0.99 ± 0.03	0.99 ± 0.02	0.55	0.59	1.60	0.11	1.78	0.08
ΔMRT(ms)	714 ± 213	485 ± 93	6.61	<0.01	538 ± 115	469 ± 72	2.52	0.02	4.84	<0.01	0.65	0.52