Table 2.
Results of 13 studies reporting at least two behavioural and psychotic symptoms of dementia
| Symptoms | Number of studies |
Baseline prevalence (%) 11 studies |
Persistence (%)a 10 studies |
Incidence (%)b 9 studies |
|---|---|---|---|---|
| Affective | 12 | High | Moderate | Moderate |
| Depression | 12 | High (8–57%) | Moderate (16–70) | Moderate (10–73) |
| Anxiety | 8 | High (17–52%) | Moderate (17–52) | Moderate (12–38) |
| Apathy | 4 | High (19–51) | High (20–55) | High (27–64) |
| Psychosis | 13 | Low | Moderate | Moderate |
| Delusions | 10 | Moderate (9–40) | Low (0–82) | Moderate (5–84) |
| Hallucinations | 11 | Low (0–18) | Low (0–52) | Low (4–45) |
| Hyperactivity | 12 | High | High | High |
| Irritability | 9 | High (6–57) | Moderate (12–80) | High (10–69) |
| Agitation | 7 | High (18–87) | Moderate (21–77) | High (19–80) |
| Wandering | 1 | NR | High (60) | NR |
| Elation | 4 | Low (3–9) | Low (2–39) | Low (4–5) |
| Sleep problems | 7 | Moderate (6–11) | Low (10–57) | Low (8–31) |
NR, not reported.
a.
Percentage of symptoms persistent over 3 months or more.
b.
Percentage incidence over 3 months or more.