Table 1.
Characteristics of study participants.
| All (n = 40) | HC (n = 10) | SCD (n = 30) | |
|---|---|---|---|
| Demographics | |||
| Females [n] (%) | 18 (45.0) | 3 (30.0) | 15 (50.0) |
| Age [years] | 68 (6), 60–83 | 72 (8), 63–83 | 67 (4), 60–76 |
| Education [years] | 16 (3), 11–23 | 15 (2), 11–19 | 17 (3), 11–23 |
| Cognition and mental health | |||
| MMSE [score] | 29.2 (0.8), 27.0–30.0 | 29.2 (1.0), 27.0–30.0 | 29.2 (0.7), 28.0–30.0 |
| ECog-39 [score] | 1.6 (0.4), 1.1–2.7 | 1.2 (0.1), 1.1–1.4 | 1.7 (0.4), 1.1–2.7 |
| GDS [score] | 1.5 (1.2), 0–4.0 | 0.6 (0.7), 0–2.0 | 1.7 (1.1), 0–4 |
| PSWQ [score] | 38.7 (11.1), 16.0–59.0 | 31.3 (7.7), 19.0–46.0 | 41.1 (11.0), 16.0–59.0 |
| Genetics | |||
| APOE ε4 carrier [n] (%) | 10 (25.0) | 0 (0) | 10 (33.3) |
| FBB PET | |||
| Amyloid positive [n] (%) | 8 (20.0) | 1 (10.0) | 7 (23.3) |
| cSUVR | 1.1 (0.2), 0.9–1.9 | 1.1 (0.2), 1.0–1.5 | 1.1 (0.2), 0.9–1.9 |
The data are given, if applicable, as mean (SD or %) and range for all participants as well as for each group (HC and SCD) separately. The amyloid positive rating was based on the visual assessment of FBB PET images. APOE ε4, apolipoprotein E ε4; cSUVR, composite standard uptake value ratio; ECog-39, 39-item Everyday Cognition Scales; FBB PET, 18F-florbetaben PET; GDS, Geriatric Depression Scale; HC, healthy controls; MMSE, Mini-Mental State Examination; PSWQ, Penn State Worry Questionnaire; SCD, subjective cognitive decline; SD, standard deviation.