| Total (n = 278) | Stable (n = 142) | Slow decliner (n = 105) | Fast decliner (n = 31) | p valuea |
---|---|---|---|---|---|
Age, years | 70.9 ± 7.12 | 70.0 ± 6.97 | 71.1 ± 7.29 | 74.5 ± 6.17b | 0.006 |
Gender, female (%) | 166 (59.7) | 83 (58.5) | 62 (59.0) | 21 (67.7) | 0.624 |
Education, year | 11.5 ± 4.90 | 11.5 ± 4.99 | 11.4 ± 4.91 | 11.9 ± 4.56 | 0.896 |
Vascular risk factor (%) | |||||
 Hypertension | 109/244(44.6%) | 52/116 (44.9%) | 43/97 (44.4%) | 14/31 (45.2%) | 0.891 |
 Diabetes mellitus | 76/244 (31.1%) | 34/116 (29.3%) | 32/97 (33.0%) | 10/31 (32.3%) | 0.475 |
 Hyperlipidemia | 64/244 (26.2%) | 33/116 (28.5%) | 21/97 (21.6%) | 10/31 (32.3%) | 0.508 |
 Cardiac disease | 50/244 (20.5%) | 21/116 (18.1%) | 23/97 (23.7%) | 6/31 (19.3%) | 0.551 |
 Previous stroke | 8/243 (3.3%) | 6/115 (5.2%) | 2/97 (2.1%) | 0/31 (0%) | 0.374 |
APOE genotype (%) | |||||
 APOE e2 carrier | 21 (8.4) | 15 (11.6) | 5 (5.5) | 1 (3.6) | 0.427 |
 APOE e4 carrier | 93 (37.3) | 37 (28.7) | 44 (48.4)b | 11 (39.2) | 0.025 |
Conversion to dementia (%) | 124 (44.6) | 10 (7.0) | 83 (79.0) | 31 (100) | < 0.0001 |
Reversion to normal (%) | 31 (11.2) | 31 (21.8) | 0 (0) | 0 (0) | < 0.0001 |