Groups | AD | non-AD | | | non-AD subgroups | | | p-value |
|---|
| | | PD/PDD | LBD | VD | Unconspicuous | Other | AD vs. non-AD |
|---|
Participants (N) | 33 | 94 | 27 | 16 | 14 | 15 | 22 | |
Sex (N: male/female) | 18/15 | 53/41 | 16/11 | 13/3 | 6/8 | 8/7 | 10/12 | .856 |
Age (years: M, SD) | 76.70, 8.29 | 74.33, 8.36 | 73.81, 7.95 | 77.94, 4.91 | 77.93, 7.09 | 77.40, 6.07 | 67.95, 9.48 | .163 |
Education (years: M, SD) | 11.09, 1.91 | 12.53, 2.98 | 11.89, 2.72 | 14.44, 3.35 | 11.14, 2.18 | 12.80, 2.93 | 12.64, 2.95 | .011* |
MMSE (score: M, SD) | 23.76, 4.01 | 25.30, 3.66 | 26.00, 2.71 | 22.13, 4.51 | 25.57, 3.69 | 27.06, 1.03 | 25.43, 3.93 | .040* |
- Note. Classification of AD versus non-AD and non-AD subgroups based on FDG-PET/CT results. AD Alzheimer Disease, LBD Lewy Body Dementia, MMSE Mini Mental Status Examination, PD Parkinson Disease, PDD Parkinson Disease Dementia, VD ascular Dementia, *significant at p-value < .05, two-tailed, based on one-way ANOVA model. The AD group included N = 5 cases with mixed etiology, where AD coincided with cerebrovascular disease (N = 3), hydrocephalus occlusus (N = 1), or where it was classified as atypical AD (N = 1). In the non-AD subgroups, the subgroup “other” involved reports of functional anomalies suspected to be of cancerous or post-operative etiology (n = 7), progressive supranuclear palsy (n = 4), normal pressure hydrocephalus (n = 3), multiple system atrophy type C (n = 3), frontotemporal dementia (n = 2) and unspecified etiology (n = 3)
