Table 1 Baseline characteristics
|  | Nonhospitalized (n = 134) | Hospitalized (n = 1200) | P value |
|---|---|---|---|
Age, years | 73.0 ± 9.8 | 76.8 ± 8.5 | < 0.001 |
Male, n (%) | 42 (31.3) | 360 (30.0) | 0.824 |
Education, years (n = 134:1185) | 9.7 ± 5.3 | 8.6 ± 5.1 | 0.027 |
APOEε4, n (%) |  |  | 0.080 |
 0 | 84 (62.7) | 853 (71.1) |  |
 1 | 46 (34.3) | 304 (25.3) |  |
 2 | 4 (3.0) | 43 (3.6) |  |
APOEε2, n (%) |  |  | 0.538 |
 0 | 117 (87.3) | 1071 (89.2) |  |
 1 | 17 (12.7) | 124 (10.3) |  |
 2 | 0 (0.0) | 5 (0.4) |  |
Hypertension, n (%) | 79 (59.0) | 955 (79.6) | < 0.001 |
Diabetes, n (%) | 26 (19.4) | 405 (33.8) | 0.001 |
Ischemic burden, n (%) (n = 104:964) |  |  | 0.017 |
 1 | 85 (81.7) | 658 (68.3) |  |
 2 | 14 (13.5) | 239 (24.8) |  |
 3 | 5 (4.8) | 67 (7.0) |  |
MMSE (n = 133:1171) | 23.4 ± 5.9 | 22.7 ± 5.5 | 0.175 |
CDR-SB (n = 133:1172) | 2.8 ± 3.3 | 3.1 ± 3.4 | 0.344 |
CDR (n = 133:1172) | 0.7 ± 0.5 | 0.7 ± 0.6 | 0.600 |
KIADL (n = 78:614) | 0.6 ± 0.7 | 0.7 ± 0.7 | 0.305 |