Table 1.
Epidemiology of psychotic symptoms in Alzheimer’s and Lewy body diseases
| % | Author | |
|---|---|---|
| Dementia—prevalence | ||
| Delusions | 60 | [30] |
| Agitation | 42 | |
| Aggression | 33 | |
| Hallucination | 20 | |
| AD—prevalence | ||
| Initial presentation | 64 | [31] |
| Total | 88–90 | [32, 33] |
| Average | 28–38 | [34] |
| Total | 50–80 | [35] |
| Delusions | 36 | [27] |
| Hallucinations | 18 | |
| Delusions + hallucinations | 13 | |
| —” —, persistent | 40–50 | [36] |
| PD—prevalence | ||
| Hallucinations | 42 | [37] |
| Delusions | 21 | |
| Minor symptoms | 45 | |
| VHs lifetime prevalence | ∼50 | [38] |
| PD—overall incidence | 30.8 (range 22–65) | [39] |
| PD—VHs prevalence | 15.8–50 | [40] |
| PDD—overall incidence | 45–68 | [41, 42] |
| Hallucinations | 45–79 | [43] |
| Delusions | 25–30 | [41, 42, 44] |
| DLB—prevalence | ||
| Hallucinations | 13–92 | [45, 46] |
| Hallucinations mean | 63–78 | |
| Misidentification | 56 | |
| Paranoid delusions | 25–28.6 | [47, 48] |
| Paranoid delusions | 49 | [49] |
PD: Parkinson disease; PDD: Parkinson disease dementia; DLB: dementia with Lewy bodies; VHs: visual hallucinations.