Comparison of hallucinators v non-hallucinators
| Visual hallucinations (n=26) | No hallucinations (n=72) | Statistical analysis | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean (SD) | n (%) | Mean (SD) | n (%) | ||||||
| TICS | 29.9 (5.8) | 33.0 (3.5) | t=−3.22, df=95, p=0.002 | ||||||
| Visual acuity best eye 20/ | 20/44.6 (36.6) | 20/32.8 (12.1) | t=2.42, df=95, p=0.018 | ||||||
| GDS | 7.9 (6.5) | 5.0 (4.5) | t=2.50, df=95, p=0.014 | ||||||
| UPDRS | 47.8 (21.4) | 38.5 (16.5) | t=2.22, df=91, p=0.03 | ||||||
| Total levodopa dose (mg/d) | 648.1 (533.9) | 593.1 (497.9) | t=0.47, df=96, p=0.63 | ||||||
| Years of levodopa treatment | 9.2 (4.3) | 7.4 (4.7) | t=1.63, df=79, p=0.11 | ||||||
| No of medications | 4.6 (2.0) | 4.0 (2.1) | t=1.20, df=91, p=0.23 | ||||||
| Personal psychiatric history: | |||||||||
| Yes | 9 (34.6) | 19 (26.4) | Fisher's exact test | ||||||
| No | 17 (65.4) | 53 (73.6) | p=0.30 | ||||||
| Levodopa use: | |||||||||
| Yes | 22 (84.6) | 60 (83.3) | Fisher's exact test | ||||||
| No | 4 (15.4) | 12 (16.7) | p=1.0 | ||||||
| Anticholinergic use: | |||||||||
| Yes | 5 (19.2) | 10 (14.1) | Fisher's exact test | ||||||
| No | 21 (80.8) | 61 (85.9) | p=0.54 | ||||||
| Amantadine use: | |||||||||
| Yes | 4 (15.4) | 5 (7.0) | Fisher's exact test | ||||||
| No | 22 (84.6) | 66 (93.0) | p=0.24 | ||||||
| Dopamine agonist use: | |||||||||
| Yes | 10 (38.5) | 17 (24.3) | Fisher's exact test | ||||||
| No | 16 (61.5) | 53 (75.7) | p=0.21 | ||||||
| Selegilene use: | |||||||||
| Yes | 16 (61.5) | 35 (49.3) | Fisher's exact test | ||||||
| No | 10 (38.5) | 36 (50.7) | p=0.36 | ||||||
TICS=Telephone interview for cognitive status; GDS=geriatric depression scale; UPDRS=unified Parkinson's disease rating scale.