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. Author manuscript; available in PMC: 2016 Apr 15.
Published in final edited form as: Neuroimage. 2015 Jan 24;110:162–170. doi: 10.1016/j.neuroimage.2015.01.041

Table 1.

Sample characteristics of all, cognitively normal, and MCI subjects

All Normal MCI P-value
Men/Women (n) 26/28 10/8 16/20 0.44
Age (years) 65 ± 6 65 ± 6 66 ± 7 0.59
Education (years) 16 ± 2 17 ± 2 16 ± 2 0.29
Height (cm) 170 ± 8 171 ± 9 170 ± 8 0.64
Body mass (kg) 80 ± 14 80 ± 16 80 ± 13 0.89
Body mass index (kg/m2) 27 ± 4 27 ± 4 28 ± 4 0.50
Neurocognitive measures
 Mini-Mental State Exam 29 ± 1 29 ± 1 29 ± 1 0.46
 CVLT Short Delay Free Recall 10 ± 3 11 ± 2 9 ± 2 <0.01
 CVLT Long Delay Free Recall 10 ± 3 12 ± 2 10 ± 3 <0.01
 Trail Making Test part A 28 ± 10 29 ± 11 27 ± 9 0.80
 Trail Making Test part B 72 ± 25 62 ± 18 77 ± 26 0.01
 Trail Making Test part B-A 44 ± 21 33 ± 16 49 ± 21 <0.01
Cardiovascular measures
 Systolic BP (mmHg) 124 ± 14 125 ± 14 124 ± 14 0.82
 Diastolic BP (mmHg) 74 ± 8 74 ± 9 74 ± 8 0.82
 Heart rate (bpm) 61 ± 10 63 ± 10 60 ± 11 0.34
 Carotid-femoral PWV (m/sec) 11.0 ± 2.7 11.2 ± 2.2 11.0 ± 2.9 0.54
 BRS (ms/mmHg) 4.99 ± 2.33 5.09 ± 2.80 4.94 ± 2.10 0.91
Brain volumetric measures
 Total grey matter volume (%ICV) 39.7 ± 2.4 40.3 ± 2.1 39.4 ± 2.6 0.23
 Total white matter volume (%ICV) 34.7 ± 3.1 34.7 ± 2.3 34.7 ± 3.5 0.83
 Medial temporal lobe volume (%TB) 1.62 ± 0.13 1.63 ± 0.13 1.62 ± 0.12 0.73
 Hippocampus volume (%TB) 0.69 ± 0.08 0.69 ± 0.06 0.69 ± 0.09 0.93
 Total WMH volume (%ICV) 0.27 ± 0.44 0.25 ± 0.39 0.29 ± 0.46 0.79

Bold: P-value<0.05 between normal vs. MCI subjects. Values are mean ± standard deviation. BP=blood pressure, BRS=baroreflex sensitivity, CVLT=California Verbal Learning Test, ICV=intracranial volume, MCI=mild cognitive impairment, PWV=pulse wave velocity, TB=total brain volume, and WMH=white matter hyperintensity. %ICV and %TB represent brain volume normalized to intracranial and total brain volumes respectively.