Table 1.

Demographic and Neuroimaging data.

Variable	North American Ischemic Stroke Cohort (N=61)	South Korean Ischemic Stroke Cohort (N=45)	p-value
Men/Women	34/27	21/24	0.4
Age (years)	64.3 ± 12.4	63.2 ± 14.0	0.7
Years of education	14.7 ± 3.1	9.3 ± 4.7	<0.0001
Days between stroke onset and neuropsychological testing	422.6 ± 246.1	101.7 ± 19.1	<0.0001
MMSE	27.8 ± 2.3	24.6 ± 4.6	<0.0001
NIHSS at neuropsychological testing	1.7 ± 2.2	1.2 ± 2.1	0.04
TMT-A (s)	55.4 ± 32.2	58.0 ± 59.2	0.2
TMT-B (s)	144.0 ± 81.3	140.4 ± 115.5	0.1
TMT-B-A difference score	88.0 ± 63.4	82.4 ± 83.6	0.08
TMT-B-A proportion score	1.69 ± 1.05	1.65 ± 1.71	0.06
TMT-B-A quotient score	2.69 ± 1.05	2.65 ± 1.71	0.06
CHIPS	22.4 ± 15.5	13.4 ± 11.2	0.001
SLF stroke involvement	53% (n=32)	24% (n=11)	0.004
Executive network stroke involvement	69% (n=43)	67% (n=30)	0.7
Total Infarction (%)†	2.3 ± 3.7	0.71 ± 1.5	0.004
WMH (%)†	0.84 ± 1.08	0.36 ± 0.44	<0.0001
NAGM (%)†	42.8 ± 3.3	45.9 ± 5.9	0.001
NAWM (%)†	32.3 ± 3.8	33.7 ± 5.0	0.1
vCSF (%)†	3.2 ± 1.6	2.3 ± 1.3	0.001
sCSF (%)†	18.5 ± 3.9	17.0 ± 2.8	0.03

Mean ± SD

^†Volumes expressed as a percentage of Total Intracranial Volume for head size correction

Abbreviations:

National Institute of Health Stroke Scale (NIHSS);Mini-mental State Examination (MMSE); Trail Making Test (TMT); White Matter Hyperintensities (WMH); Normal appearing grey matter (NAGM); Normal appearing white matter (NAWM); ventricular cerebrospinal fluid volume (vCSF); sulcal cerebrospinal fluid volume (sCSF); Cholinergic Hyperintensities Projections Scale (CHIPS); Superior Longitudinal Fasciculus (SLF)