Relationship of Asymmetrical Dimethylarginine, Nitric Oxide, and Sustained Attention during Attack in Patients with Major Depressive Disorder

Table 2

Comparison of study group with healthy controls according to cognitive tests.

Neurocognitive tests	MDD group (𝑛=41)	Control group (𝑛=44)	𝑃	𝑡	df
Rey verbal learning and memory test
Total learning scores (1–5)**	46.44 ± 6.59	55.66 ± 6.09	0.0001**	−6.70	83
Delayed recalling scores (7)**	9.54 ± 1.98	12.02 ± 1.78	0.0001**	−6.07	83
True positives**	13.39 ± 1.77	14.29 ± 0.79	0.004**	−3.00	54.59
Recognition percent correct score	0.90 ± 0.13	0.94 ± 0.12	0.168	−1.39	83
Auditory consonant trigram test; total scores**	44.51 ± 6.80	53.77 ± 3.92	0.0001**	−7.61	63.04
Controlled word association test; total scores**	29.31 ± 12.12	42.52 ± 12.72	0.0001**	−4.89	83
Digit span test (DST)
Forward section score**	5.82 ± 1.99	7.81 ± 1.74	0.0001**	−4.89	83
Backward section score**	5.46 ± 2.32	8.11 ± 2.54	0.0001**	−5.00	83
Total scores*	12.85 ± 7.78	15.93 ± 4.00	0.023*	−2.31	83
Trail making test (TMT) (seconds)
Part A**	51.85 ± 13.41	37.49 ± 12.19	0.0001**	5.17	83
Part B**	143.53 ± 121.53	72.87 ± 33.13	0.001**	3.60	45.52
Stroop test main card reading time (seconds)**	31.83 ± 9.01	19.79 ± 4.54	0.0001**	7.68	58.18
Wisconsin card sorting test (WCST)
Categories completed*	3.98 ± 2.26	5.05 ± 1.53	0.014*	−2.53	69.84
Total correct percentage score**	62.26 ± 16.19	72.22 ± 17.73	0.008**	−2.69	83
Perseverative errors**	20.41 ± 11.90	13.72 ± 8.96	0.004**	2.93	83
Failure to maintain set**	1.24 ± 1.39	0.55 ± 0.69	0.005**	2.89	57.93
TOVA test scores
Omission errors**	10.73 ± 19.74	1.41 ± 2.03	0.004**	3.00	40.79
Commission errors	13.02 ± 13.30	10.89 ± 14.97	0.49	0.69	83

∗P < 0.05; **P < 0.01; MDD: major depressive disorder.