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Table 3. 

Sample Characteristics of Subjects


CDR 0
CDR 0.5
CDR 1
Number 86 51 13 
Female/male 60/26 21/30 7/6 
Age (years) 75.8 ± 8.2 (60–93) 74.8 ± 6.3 (62–90) 75.7 ± 8.7 (61–96) 
Education (years) 15.2 ± 2.7 (8–23) 13.6 ± 2.8 (6–20) 14.0 ± 3.2 (8–20) 
MMSE 29.1 ± 0.8 (27–30) 26 ± 3.1 (17–30) 23.0 ± 3.3 (19–30) 
Prescriptions (n2.9 ± 2.1 (0–9) 3.2 ± 2.4 (0–11) 2.5 ± 2.4 (0–7) 
Systolic BP (mmHg) 135.5 ± 20.3 (98–192) 143.5 ± 19.4 (118–188) 143.4 ± 24.9 (90–188) 
Diastolic BP (mmHg) 72.8 ± 10.2 (50–100) 77.1 ± 10.1 (58–98) 76.9 ± 9.2 (60–88) 
Reported HBP (%) 54.6 46.0 53.3 
Diabetes (%) 9.3 14.0 13.3 

CDR 0
CDR 0.5
CDR 1
Number 86 51 13 
Female/male 60/26 21/30 7/6 
Age (years) 75.8 ± 8.2 (60–93) 74.8 ± 6.3 (62–90) 75.7 ± 8.7 (61–96) 
Education (years) 15.2 ± 2.7 (8–23) 13.6 ± 2.8 (6–20) 14.0 ± 3.2 (8–20) 
MMSE 29.1 ± 0.8 (27–30) 26 ± 3.1 (17–30) 23.0 ± 3.3 (19–30) 
Prescriptions (n2.9 ± 2.1 (0–9) 3.2 ± 2.4 (0–11) 2.5 ± 2.4 (0–7) 
Systolic BP (mmHg) 135.5 ± 20.3 (98–192) 143.5 ± 19.4 (118–188) 143.4 ± 24.9 (90–188) 
Diastolic BP (mmHg) 72.8 ± 10.2 (50–100) 77.1 ± 10.1 (58–98) 76.9 ± 9.2 (60–88) 
Reported HBP (%) 54.6 46.0 53.3 
Diabetes (%) 9.3 14.0 13.3 

The sample consisted of 150 individuals (72 nondemented, 64 with AD, and 14 who converted over the course of the study). Clinical measures in the above table were obtained at the clinical assessment closest in date to the initial imaging session, except in 39 cases where these values were not available until a later visit. Values are presented as mean ± SD. Values in parentheses represent the range. Compared with the nondemented adults, the older adults with dementia had lower scores on the MMSE (p < .001) and slightly fewer years of education (p < .001).

CDR = Clinical Dementia Rating, with 0, 0.5, and 1 corresponding to nondemented, very mild, and mild AD, respectively; MMSE = Mini-Mental State Examination where scores range from 30 (best) to 0 (worst); HBP = high blood pressure.

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