ANXIETY DISORDER IN DEMENTIA

Objective: To estimate the prevalence of anxiety disorders and to expl ore several potential aetiological factors. Method: Ninety two consecu tive patients assessed at a day hospital for patients with probable de mentia were interviewed using the CAMDEX schedule. Fifty eight patient s gave a sufficiently reliable interview and had a first degree relati ve in close contact as an informant and were hence included in the stu dy group. The prevalence of RDC generalised anxiety disorder in this g roup was determined. Type of dementia, severity of dementia and insigh t were explored as possible aetiological factors. Results: The prevale nce of RDC generalised anxiety disorder was 31%. Fifty percent of thes e patients suffered from anxiety symptoms in the context of RDC major depression. Anxiety disorders were most common in those with mild deme ntia and in those who retained insight, both showing a trend towards a significant association with anxiety. Conclusions: Anxiety disorders are very common in dementia sufferers particularly in those with mild dementia. Further research is needed in this area, particularly with r espect to treatment.