A controlled study of dementia in Parkinson's disease. Issue 11 (November 1982)

• Record Type: Journal Article
• Authors: Mindham, R H; Ahmed, S W; Clough, C G
• Is Part Of: Journal of neurology, neurosurgery and psychiatry. Volume 45:Issue 11(1982)
• Page Start: 969
• Page End: 974
• Publication Date: 1982-11
• Subjects: Neurology -- Periodicals; Nervous system -- Surgery -- Periodicals; Psychiatry -- Periodicals; 616.8
• DOI: 10.1136/jnnp.45.11.969
• Languages: English
• ISSNs: 0022-3050

Abstract

Abstract : Tests of cognitive functions were carried out in a group of patients with Parkinson's disease and repeated after a three-year interval. Comparison was made with a control group drawn from a population of psychiatric patients, matched for age and sex. No differences in cognitive functions were found between the groups, either initially, or between those surviving for three years. Deaths among the index group included a high proportion of patients with cognitive impairment and there was an increasing prevalence and severity of dementia in the index group which exceeded that observed in the control group. Requirements for a methodologically sound study of dementia in Parkinson's disease are discussed.