P0019 - Prevalence of Dementia with Lewy Bodies in a communal psychogeriatric inpatient population

Abstract

Objective:

Data on the prevalence of Dementia with Lewy Bodies (DLB) derive mostly from neuropathological data or community studies. There exist only limited data about the prevalence in the communal geriatric psychiatry service with 3% in a Chinese and 28% in a British study.

Method:

We applied the recently revised consensus criteria for DLB, One Day Fluctuation Assessment Scale (ODFAS) and Unified Parkinsons Disease Rating Scale (UPDRS) retrospectively (chart review) (n=58) and prospectively (n=54) on demented patients in a communal psychiatric service in Basel, Switzerland.

Results:

Prevalence in the prospective group was 19% and 5% in the retrospective group. The odds ratio between both groups is 5.1. If gender is considered odds ratio for women is 2.4 and for men 6.8.

Conclusions:

Our study shows that in communal geriatric psychiatry a high prevalence of DLB is encountered and that prospective use of DLB diagnosis criteria in combination with scales for fluctuation and parkinsonism enhances the detection rate of DLB.