Descriptive statistics
| n=129 Mean (SD), range | Developing dementia (D) n=37 | Stable QD n=92 | p Value |
|---|---|---|---|
| Values are: *time to survival for stable QD patients is the same as time to last visit; | |||
| †n of QD = 89; | |||
| ‡n of QD = 91; | |||
| §n of QD = 89; | |||
| ¶no of D = 36, n of QD = 89. | |||
| Men | 17 (46%) | 51 (55%) | 0.616 |
| Women | 20 (54%) | 41 (45%) | |
| History of cognitive impairment (months) | 19.4 (13.1), 2–54 | 32.0 (30.5), 3–156 | 0.016 |
| Time to diagnosis or survival (months)* | 25.3 (19.4), 7.2–81.2 | 19.7 (17.0), 4.8–90.8 | 0.083 |
| Time to last visit (months) | 36.0 (21.3), 7.7–95.7 | 19.7 (17.0), 4.8–90.8 | 0.000 |
| Age (y) | 73.2 (8.5), 52–88 | 68.7 (10.2), 46–88 | 0.020 |
| Education (y) | 10.8 (3.0), 5–21 | 10.9 (2.6), 6–23 | 0.848 |
| Stockton dependency rating† | 3.4 (3.2), 0–12 | 3.2 (3.3), 0–16 | 0.701 |
| Hachinski ischaemia score‡ | 3.1 (2.4), 1–10 | 3.2 (2.2), 0–13 | 0.830 |
| Cornell depression scale§ | 4.2 (3.9), 0–14 | 4.3 (3.7), 0–17 | 0.913 |
| MMSE | 23.0 (3.2), 15–30 | 25.2 (3.2), 15–30 | 0.000 |
| NART Predicted IQ¶ | 106.6 (13.5), 77–129 | 108.1 (13.0), 77–129 | 0.544 |