Table 1.
Demographic and background characteristics of DLB, PDD, and AD patients
| DLB | PDD | AD | F/χ2 | p‐value | |
|---|---|---|---|---|---|
| N | 55 | 34 | 78 | ||
| Sex, m/f | 33/22 | 15/19 | 41/37 | 2.161 | NS |
| Education (year) | 6.7 ± 5.5 | 6.4 ± 4.4 | 6.0 ± 5.2 | 0.288 | NS |
| Age (year) | 78.4 ± 7.1 | 75.5 ± 9.6 | 77.6 ± 8.3 | 1.282 | NS |
| Onset age (year) | 76.4 ± 7.0 | 72.9 ± 9.5 | 74.3 ± 8.0 | 2.287 | NS |
| CDR 0.5/1/2/3 | 16/32/7/0 | 9/21/4/0 | 19/38/19/2 | 6.844 | NS |
| CDR‐SB | 6.3 ± 3.0 | 5.4 ± 2.7 | 6.5 ± 3.1 | 1.693 | NS |
| MMSE | 19.7 ± 6.6 | 21.3 ± 5.7 | 18.1 ± 7.1 | 2.876 | NS |
| CASI | 63.0 ± 20.7 | 69.1 ± 17.9 | 58.1 ± 23.4 | 3.204 | .043 |
| NPI | 22.6 ± 12.7 | 15.9 ± 9.4 | 19.5 ± 14.9 | 2.655 | NS |
| NPI‐H | 1.9 ± 2.5 | 0.7 ± 1.6 | 0.8 ± 1.7 | 5.902 | .003 |
| UPDRS‐m | 13.6 ± 7.8 | 16.7 ± 8.8 | 7.4 ± 6.6 | 21.942 | <.001 |
| Clinical features | |||||
| Fluctuation, n (%) | 19 (34.5) | 7 (20.6) | 10 (12.8) | 9.027 | .011 |
| VHs, n (%) | 25 (45.5) | 7 (20.6) | 17 (21.8) | 10.287 | .006 |
| Parkinsonism, n (%) | 47 (85.5) | 34 (100) | 14 (17.9) | 92.289 | <.001 |
| RBD, n (%) | 23 (41.8) | 11 (32.4) | 6 (7.7) | 22.277 | <.001 |
DLB, dementia with Lewy bodies; PDD, Parkinson's disease dementia; AD, Alzheimer's disease; Onset age, onset age of dementia; CDR, Clinical Dementia Rating scale; CDR‐SB, sum of boxes of CDR; MMSE, Mini‐mental State Examination; CASI, Cognitive Abilities Screening Instrument; NPI, total score of 12‐domain Neuropsychiatric Inventory; NPI‐H, subscore of hallucinations in NPI; UPDRS‐m, motor score of the Unified Parkinson's Disease Rating Scale. VHs, visual hallucinations; RBD, REM sleep behavior disorder.