Table. Demographic and Clinical Characteristics of Participants.
| Characteristic | No. (%) | |
|---|---|---|
| Aβ−CN (n = 33) | Aβ+CN (n = 16) | |
| Age, mean (SD), y | 68.4 (9.7) | 75.2 (7.1) |
| Sex | ||
| Women | 15 (45.5) | 10 (62.5) |
| Men | 18 (54.5) | 6 (37.5) |
| Educational level, mean (SD), y | 12.4 (5.1) | 10.8 (4.1) |
| APOE4 carrier status | 9 (27.3) | 7 (43.8) |
| Hypertension | 11 (33.3) | 7 (43.8) |
| Diabetes | 2 (6.1) | 3 (18.8) |
| Coronary heart disease | 2 (6.1) | 1 (6.3) |
| Hyperlipidemia | 11 (33.3) | 3 (18.8) |
| Best-corrected visual acuity, mean (SD), logMAR | −0.01 (0.09) | 0.07 (0.12) |
| Cerebral Aβ deposition, mean (SD), SUVR | 1.11 (0.05) | 1.89 (0.36) |
| AD-signature cortical thickness, mean (SD), mm | 2.49 (0.16) | 2.47 (0.14) |
Abbreviations: Aβ, amyloid-β; AD, Alzheimer disease; APOE4, apolipoprotein E e4 allele; CN, cognitively normal; SUVR, standardized uptake value ratio.