Table 1 Demographic information for the ROS, MAP, and MARS cohorts.
ROS | MAP | MARS | |
|---|---|---|---|
Number of participants | 1093 | 1508 | 510 |
Number of samples | 5575 | 6849 | 1353 |
Ethnicity (%) | |||
American Indian or Alaska Native | 5 (0.5) | 3 (0.2) | 0 (0.0) |
Asian | 1 (0.1) | 6 (0.4) | 0 (0.0) |
Black or African American | 90 (8.2) | 82 (5.4) | 510 (100.0) |
Native Hawaiian or Other Pacific Islander | 1 (0.1) | 1 (0.1) | 0 (0.0) |
Unknown | 3 (0.3) | 2 (0.1) | 0 (0.0) |
White | 993 (90.9) | 1414 (93.8) | 0 (0.0) |
Female (%) | 777 (71.1) | 1110 (73.6) | 381 (74.7) |
Education year (mean (SD)) | 18.18 (3.34) | 14.61 (3.20) | 14.93 (3.52) |
Age at enrollment (mean (SD)) | 75.38 (7.28) | 80.00 (7.32) | 73.64 (6.29) |
Age at visit (mean (SD)) | 79.52 (6.85) | 82.11 (7.37) | 75.58 (6.24) |
Follow-up year (mean (SD)) | 8.29 (5.21) | 4.33 (3.45) | 3.37 (3.00) |
Demented (%) | 278 (25.4) | 250 (16.6) | 26 (5.1) |
Global cognitive function (mean (SD)) | −0.01 (0.73) | −0.11 (0.73) | −0.13 (0.57) |
MMSE (mean (SD)) | 27.25 (3.23) | 26.94 (3.39) | 27.68 (2.27) |
No cognitive impairment (NCI) (%) | 579 (53.0) | 896 (59.4) | 386 (75.7) |
Mild cognitive impairment (MCI) (%) | 243 (22.2) | 370 (24.5) | 103 (20.2) |
MCI, multiple causes (%) | 11 (1.0) | 14 (0.9) | 1 (0.2) |
Alzheimer’s dementia (Probable AD) (%) | 218 (19.9) | 196 (13.0) | 18 (3.5) |
Alzheimer’s dementia, multiple causes (Possible AD) (%) | 28 (2.6) | 17 (1.1) | 0 (0.0) |
Other dementia (%) | 12 (1.1) | 8 (0.5) | 1 (0.2) |
Vascular dementia (%) | 46 (4.2) | 39 (2.6) | 6 (1.2) |
Pentagon score = 1 (%) | 509 (47.1) | 822 (55.1) | 307 (60.2) |
Deceased (%) | 769 (70.4) | 924 (61.3) | 155 (30.4) |
