Table 2.
Baseline characteristics of progressors vs. non-progressors
| Characteristic | Non-progressors (N = 989) | Progressors (N = 868) | Overall (N = 1857) | p value |
|---|---|---|---|---|
| Age | ||||
| Mean (SD) | 74.5 (7.4) | 77.5 (6.8) | 75.9 (7.3) | < 0.0001 |
| Gender | ||||
| Male | 24.2% | 29.3% | 26.5% | < 0.05 |
| Female | 75.8% | 70.7% | 73.5% | |
| Race | ||||
| Native American, Indian | 0.3% | 0.1% | 0.2% | < 0.05* |
| Black, Negro, African-American | 21.9% | 16.6% | 19.4% | |
| White | 77.6% | 82.7% | 80.0% | |
| Asian or Pacific Island | 0.1% | 0.5% | 0.3% | |
| Missing | 0.1% | 0.1% | 0.1% | |
| Education (years) | ||||
| Mean (SD) | 15.9 (3.8) | 16.3 (3.7) | 16.1 (3.8) | < 0.05 |
| APOE4 carrier status | ||||
| Carrier | 17.0% | 23.3% | 19.9% | < .0001 |
| Non-carrier | 62.0% | 69.9% | 65.7% | |
| Missing | 21.0% | 6.8% | 14.4% | |
| Baseline MMSE | ||||
| Mean (SD) | 28.9 (1.3) | 28.3 (1.7) | 28.6 (1.6) | < 0.0001 |
| Baseline APCC | ||||
| Mean (SD) | 65.5 (7.1) | 61.6 (7.1) | 63.7 (7.4) | < 0.0001 |
*p value for race is White vs. other