Table 3.
Mean age of onset, death and duration in PSEN1, PSEN2 and late onset Alzheimer’s disease families
| PSEN1 (23 families) | PSEN2 (11 families) | Late onset Alzheimer’s disease (125 families) | |
|---|---|---|---|
| Mean age of onset | 45.5 ± 8.0 (28–79) | 53.7 ± 7.8 (39–75) | 71.5 ± 7.9 (45–91) |
| Mean age at death | 54.5 ± 9.3 (37–84) | 64.2 ± 9.8 (43–88) | 80.8 ± 7.3 (55–103) |
| Mean duration | 8.4 ± 3.8 (2–25) | 10.6 ± 4.8 (3–25) | 10.2 ± 5.1 (1–28) |