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This research examines the accuracy of dementia diagnoses in Danish hospital registers.

Validity of Dementia Diagnoses in the Danish Hospital Registers

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Randomized trial shows high validity of dementia diagnoses, suggesting reliable epidemiological research.

This research examines the accuracy of dementia diagnoses in Danish hospital registers.
Analyzed dementia registrations in Danish hospital databases.
Evaluated the validity of Alzheimer’s disease and other ICD-10 dementia subtypes.
High validity of dementia syndrome was confirmed in the hospital registers.
Alzheimer's disease's validity improved upon registration despite underregistration.
ICD-10 dementia subtypes generally exhibited lower validity for research.

Phung et al. (2007) studied this question.

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