Table 1.
Characteristics of Baltimore Longitudinal Study of Ageing autopsy participants
| Total subjects (n = 209) | Subjects who were demented at death (n = 104) | Subjects who were non-demented at death (n = 105) | ||
|---|---|---|---|---|
| Panel A | ||||
| Age at death | 87.3 ± 7.6 (70–102) | 88.5 ± 6.3 (71–102) | 86.4 ± 8.1 (70–101) | |
| Sex | 140 male, 69 female | 65 male, 39 female | 75 male, 30 female | |
| Baseline Mini-Mental State Exam | 29 (25–30) | 29 (25–30) | 29 (25–30) | |
| Final Mini-Mental State Exam | 25 (0–30) | 14 (0–30) | 29 (25–30) | |
| Length of follow-up (years) | 17.3 ± 5.4 (8–28) | 17.7 ± 5.6 (8–28) | 17.0 ± 5.1 (9–26) | |
| Time between last evaluation and death (months) | 8.8 ± 6.4 (1–18) | 9.1 ± 6.4 (1–18) | 8.5 ± 6.1 (1–18) | |
| Years of education | 17.0 ± 2.4 (9–22) | 16.9 ± 2.3 (10–22) | 17.0 ± 2.5 (9–22) | |
| Mini-Mental State Exam scores across age groups |
||||
| Panel B | ||||
| Age at death (years) | 70–82 (n = 51) | 83–87 (n = 53) | 88–93 (n = 55) | 94–101 (n = 50) |
| Initial Mini-Mental State Exam | ||||
| Demented at death | 29 (27–30) | 29 (25–30) | 28 (26–30) | 28 (26–30) |
| Non-demented at death | 29 (26–30) | 29 (27–30) | 29 (27–30) | 28 (25–30) |
| Final Mini-Mental State Exam | ||||
| Demented at death | 15 (0–30) | 14 (0–28) | 14 (0–25) | 13 (0–24) |
| Non-demented at death | 29 (25–30) | 29 (26–30) | 28 (25–30) | 28 (25–30) |
The data are presented as mean, standard deviation and range except for the baseline and final Mini-Mental State Exam values, which are presented as median and range. Using analysis of variation, none of the characteristics are different at the 0.05 level between the groups except for the initial and final Mini-Mental State Exam values of subjects who became demented.