Validation of Parkinson's Disease Ascertainment in the Veterans Administration Electronic Medical Record.

ABSTRACT:

Background

Electronic medical record (EMR)-based studies hold great potential for epidemiologic investigations of Parkinson's disease (PD) causal factors and phenomenology, but diagnostic misclassification may obscure or bias inferences.

Objectives

The aims were to determine the validity of PD diagnostic codes in the Veterans Administration (VA) national electronic medical databases and develop recommendations for maximizing ascertainment accuracy.

Methods

We investigated a cohort of 146,776 veterans who utilized VA healthcare between 1999 and 2021. We reviewed the medical records of individuals with a PD International Classification of Diseases (ICD) code in outpatient, inpatient, or community care encounters to assign a gold-standard diagnosis. We determined diagnos

SUBMITTER: Goldman SM 

PROVIDER: S-EPMC11832812 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature