Evaluation of cognitive impairment in patients with major depressive disorder in remission

Table 6 Correlation between age at onset of MDD and cognitive and executive functions

	r	P
Visual memory
Figural memory	− 0.05	> 0.05 (NS)
Visual Paired Associates	0.14	> 0.05(NS)
Verbal memory
Logical memory	0.14	> 0.05(NS)
Verbal Paired Associates	0.11	> 0.05(NS)
Attention/concentration
Mental control	− 0.18	> 0.05(NS)
Digit span	− 0.06	> 0.05(NS)
Visuospatial function
Visual reproduction	− 0.07	> 0.05(NS)
Wisconsin card sorting test
Trial administered (conceptualization)	0.08	> 0.05(NS)
Categories completed (abstract ability)	− 0.06	> 0.05(NS)
Perseverative errors (cognitive flexibility)	− 0.15	> 0.05(NS)
Failure to maintain set (sustained attention)	− 0.13	> 0.05(NS)

There were statistically non-significant correlations between age at onset of MDD and different subsets of Wechsler memory scale (p > 0.05). Also, there were non-significant correlations between age at onset of depression and executive function as assessed by Wisconsin card sorting test (p > 0.05)