Table 3. ROS/MAP Participant Characteristics.
| Characteristic | Brain tissue gene expressiona |
|---|---|
| No. of participants | 600 |
| Age at death, mean (SD), y | 88.61 (6.64) |
| Education, mean (SD), y | 16.48 (3.51) |
| Women, No. (%) | 384 (64) |
| Non-Hispanic white, No. (%) | 586 (98) |
| APOE4 carriers, No. (%) | 151 (25) |
| AD, No. (%) | 215 (36) |
| Postmortem interval, mean (SD), h | 6.83 (4.86) |
Abbreviations: AD, Alzheimer disease; ROS/MAP, Religious Orders Study and Rush Memory and Aging Project.
a
Gene expression data were collected from prefrontal cortex tissue of participants from ROS/MAP. Brain amyloid levels were measured using immunohistochemistry.