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Prevalence of tardive dyskinesia in 3140 French inpatients
Abstract:
The purpose of this article is to report the prevalence of tardive dyskinesia using strict diagnostic criteria in a large sample of chronic mental patients. The criteria used were those of Villeneuve, and only patients with constant movements were counted. The disorder was significantly (p less than .001) less frequent in males (5.8 per cent) than females (10.6 per cent). The study found an overall prevalence of 8.2 per cent in 3140 patients. This figure should represent a minimal prevalence figure since only patients with severe symptoms were included.
Insights
This study found that tardive dyskinesia affects 8.2% of chronic mental patients, with higher prevalence in females (10.6%) than males (5.8%). Strict criteria ensured accurate minimal prevalence of this movement disorder.
Area of Science:
- Psychiatry
- Neurology
- Epidemiology
Background:
- Tardive dyskinesia is a significant concern in chronic mental health patients.
- Accurate prevalence data is crucial for understanding the scope of this neurological movement disorder.
Purpose of the Study:
- To determine the prevalence of tardive dyskinesia in a large cohort of individuals with chronic mental illness.
- To apply strict diagnostic criteria to ensure a reliable prevalence estimate.
Main Methods:
- Utilized Villeneuve's diagnostic criteria for tardive dyskinesia.
- Included only patients exhibiting constant involuntary movements.
- Assessed a sample size of 3140 chronic mental patients.
Main Results:
- Overall prevalence of tardive dyskinesia was 8.2% in the studied population.
- The disorder was significantly more common in females (10.6%) compared to males (5.8%) (p < .001).
- This prevalence represents a minimal figure due to the inclusion of only severe cases.
Conclusions:
- Tardive dyskinesia impacts a notable percentage of chronic mental patients.
- The higher prevalence in females warrants further investigation.
- The study provides a conservative estimate of tardive dyskinesia prevalence in this population.