Table 1.
Demographics of the study groups
| Healthy | MCI | Subgroups |
||
|---|---|---|---|---|
| Possible Alzheimer's disease according to biomarkers | MCI without biomarkers of Alzheimer's disease | |||
| Number | 42 | 42 | 16 | 25 |
| Age (years, mean ± SD) | 66 ± 9 | 70 ± 10 | 75 ± 8 | 70 ± 10 |
| Heart rate (beats/min, mean ± SD) | 68 ± 15 | 68 ± 11 | 66 ± 12 | 69 ± 11 |
| Finger oximetry (%, mean ± SD) | 96 ± 2 | 98 ± 8 | 97 ± 2 | 97 ± 1 |
| Systolic pressure (mm Hg, mean ± SD) | 134 ± 19 | 136 ± 23 | 135 ± 23 | 138 ± 24 |
| Diastolic pressure (mm Hg, mean ± SD) | 86 ± 10 | 86 ± 11 | 85 ± 10 | 87 ± 12 |
| MAP (mm Hg, mean ± SD) | 102 ± 12 | 101 ± 17 | 98 ± 22 | 104 ± 14 |
Abbreviations: MAP, mean arterial pressure; MCI, mild cognitive impairment; min, minutes; SD, standard deviation.
NOTE. Heart rate, finger oximetry, and blood pressure measurements were missing for four individuals (three healthy and one MCI).