Table 1.
Characteristics of analytic sample, by microbleed status (N=322)
| Variables | No microbleeds (N=247) | Deep microbleeds only (N=45) | Mixed (deep + lobar) microbleeds (N=15) | Lobar microbleeds only (N=15) |
|---|---|---|---|---|
| Age (y) (mean (SD)) | 75.9 (5.3) | 74.5 (5.2) | 77.5 (6.1) | 75.0 (4.5) |
| Female sex | 146 (59%) | 24 (53%) | 4 (27%) | 9 (60%) |
| Black race | 98 (40%) | 24 (53%) | 7 (47%) | 9 (60%) |
| Education < HS High school / GED >HS |
33 (13%) 107 (43%) 107 (43%) |
10 (22%) 20 (44%) 15 (33%) |
4 (27%) 5 (33%) 6 (40%) |
4 (27%) 6 (40%) 5 (33%) |
| APOE e4 carrier* | 65 (27%) | 17 (39%) | 7 (47%) | 9 (60%) |
| Hypertension | 178 (72%) | 32 (71%) | 10 (67%) | 10 (67%) |
| Diabetes | 98 (40%) | 19 (42%) | 6 (40%) | 4 (27%) |
| Obesity (BMI≥30) | 96 (39%) | 17 (38%) | 6 (40%) | 2 (13%) |
| Current smoking | 12 (5%) | 5 (11%) | 0 (0%) | 1 (7%) |
| Global Cortical SUVR (mean (SD)) | 1.28 (0.24) | 1.29 (0.26) | 1.36 (0.37) | 1.42 (0.23) |
| Mild cognitive impairment | 66 (27%) | 7 (16%) | 6 (40%) | 5 (33%) |
N (%) unless otherwise specified
*
5 individuals missing APOE data, coded as “missing” for analyses (not excluded)