Research Article

Impact of Depression, Fatigue, and Global Measure of Cortical Volume on Cognitive Impairment in Multiple Sclerosis

Table 1

Demographic and clinical characteristics of the MS patients.

FemalesMalesAll

Patients 39 (65%)21 (35%)60 (100%)
Age (years) 38.6 ± 10.8 40.8 ± 10.3 39.3 ± 10.6
Education (years)14.2 ± 3.8 12.9 ± 3.813.8 ± 3.8
Disease duration (years) 6.4 ± 5.3 6.1 ± 5.2 6.3 ± 5.2
EDSS (test scores) 2.2 ± 1.3 2.6 ± 1.6 2.4 ± 1.4
FSS (test scores)19.5 ± 15.920.52 ± 15.219.9 ± 15.5
MR parameters
 Normalized brain volume (mm3)1493.9 ± 43.31484.8 ± 55.71490.7 ± 50.1
 Normalized cortical volume (mm3) 540.9 ± 31.2 538.4 ± 32.9 540.0 ± 31.5
MS subtype
 Relapsing remitting35 (89.7%)17 (81.0%)52 (86.7%)
 Progressive form 4 (10.3%)4 (19.0%) 8 (13.3%)
Therapy
 None15 (38.5%)12 (57.1%)27 (45.0%)
 Interferon17 (43.6%) 5 (23.8%)22 (36.6%)
 Glatiramer acetate2 (5.1%)1 (4.8%) 3 (5.0%)
 Natalizumab 4 (10.3%) 2 (9.5%) 6 (10.0%)
 Fingolimod1 (2.5%) 1 (1.7%)
 SNRI (sertraline)1 (4.8%) 1 (1.7%)
Depression
 Minimal24 (61.5%)14 (66.7%)38 (63.3%)
 Mild10 (25.6%) 4 (19.0%)14 (23.3%)
 Moderate 4 (10.3%) 3 (12.3%) 7 (11.7%)
 Severe1 (2.6%)1 (1.7%)

Mean ± standard deviation was used to describe continuous variables; proportions (numbers and percentages) were used to describe categorical variables. EDSS, Expanded Disability Severity Scale; FSS, Fatigue Severity Scale; MR, magnetic resonance; SSRI, selective serotonin reuptake inhibitor.