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Vascular dementia encoding in the French nationwide discharge summary database (PMSI): Variability over the 2007-2017
M Rochoy1, E Chazard2, S Gautier3
1University Lille, 59000 Lille, France; U1171, Inserm, Degenerative and Vascular Cognitive Disorders, 59000 Lille, France; Département de médecine générale, 1 Place de Verdun, 59000 Lille, France.
Annales De Cardiologie Et D'Angeiologie
|November 10, 2018
Summary
Hospital coding for vascular dementia (VaD) shows a decrease in overall stays but a rise in specific subtypes like acute onset VaD. This suggests evolving diagnostic criteria and better cardiovascular risk management.
Area of Science:
- Neurology
- Epidemiology
- Health Informatics
Background:
- Vascular dementia (VaD) is a significant cause of dementia, with diagnostic criteria evolving from multiple infarctions to distinct subtypes.
- Understanding coding trends is crucial for accurate epidemiological analysis and healthcare resource allocation.
Purpose of the Study:
- To analyze the evolution of coding for vascular dementia subtypes in the French national hospital discharge database (PMSI) from 2007 to 2017.
- To assess changes in the frequency of coding for multiple infarctions, acute onset VaD, subcortical VaD, and mixed VaD.
Main Methods:
- Utilized the French nationwide exhaustive hospital discharge database (PMSI) for principal diagnoses of VaD between 2007 and 2017.
- Compared the proportion of VaD hospital stays relative to all hospital stays over the study period.
- Analyzed coding trends for different VaD subtypes.
Main Results:
- Overall hospital stays for VaD decreased slightly from 0.0437% to 0.0404% of all hospital stays.
- Significant shifts in subtype coding were observed: multiple infarctions decreased by 50%, while subcortical/mixed VaD increased by 20%, acute onset VaD by 184%, and 'other VaD' by 85%.
- In 2017, VaD accounted for 13.5% of mental organic disorders, with 11,654 hospital stays.
Conclusions:
- The data suggest a potential decrease in VaD hospitalizations, possibly linked to improved cardiovascular risk factor management.
- Observed coding trends indicate a need for alignment with evolving diagnostic criteria for VaD.
- The study highlights the dynamic nature of VaD coding and diagnosis in a national healthcare system.
Keywords:
Base de donnéesClinical codingCodage cliniqueDatabaseDementiaDiagnosisDiagnosticDémence vasculaireVascularMore Related Videos
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