Table 2.
Sociodemographic characteristics of early-onset dementia cases (EOAD, early-onset Alzheimer’s dementia; EOFTD, early-onset frontotemporal dementia) and controls.
| Characteristics | Cases | EOAD | EOFTD | Controls |
|---|---|---|---|---|
| n (%) | n (%) | n (%) | n (%) | |
| All subjects | 58 (51.8) | 32 (28.6) | 19 (17.0) | 54 (48.2) |
| Age at questionnaire filling | ||||
| Mean (SD) | 65.6 (5.2) | 65.8 (4.5) | 65.8 (5.7) | 63.8 (9.6) |
| <65 years | 22 (37.9) | 12 (37.5) | 6 (31.6) | 28 (51.9) |
| ≥65 years | 36 (62.1) | 20 (62.5) | 13 (68.4) | 26 (48.2) |
| Age at disease onset | ||||
| Mean (SD) | 59.3 (4.7) | 59.7 (4.1) | 59.1 (5.1) | - |
| Sex | ||||
| Men | 25 (43.1) | 11 (34.4) | 11 (57.9) | 23 (42.6) |
| Women | 33 (56.9) | 21 (65.6) | 8 (42.1) | 31 (57.4) |
| Educational attainment | ||||
| Primary or less | 16 (27.6) | 8 (25.0) | 5 (26.3) | 11 (20.4) |
| Middle school | 20 (34.5) | 10 (31.3) | 5 (42.1) | 11 (20.4) |
| High school | 19 (32.8) | 12 (37.5) | 5 (26.3) | 21 (38.9) |
| College or more | 3 (5.2) | 2 (6.3) | 1 (5.3) | 11 (20.4) |
| Marital status | ||||
| Married/unmarried partner | 48 (82.8) | 25 (78.1) | 17 (89.5) | 48 (88.9) |
| Single | 1 (1.7) | 1 (3.1) | - | 3 (5.6) |
| Separated/divorced | 3 (5.2) | - | 2 (10.5) | 2 (3.7) |
| Widowed | 6 (10.3) | 6 (18.8) | - | 1 (1.8) |
| Smoking habits | ||||
| Ever | 35 (62.5) | 19 (61.3) | 12 (66.7) | 30 (57.7) |
| Never | 21 (37.5) | 12 (38.7) | 6 (33.3) | 22 (42.3) |