Assessment of the impact of EHR heterogeneity for clinical research through a case study of silent brain infarction.
Sunyang FuLester Y LeungAnne-Olivia RaulliDavid F KallmesKristin A KinsmanKristoff B NelsonMichael S ClarkPatrick H LuetmerPaul R KingsburyDavid M KentHongfang LiuPublished in: BMC medical informatics and decision making (2020)
The implementation of the framework identified the institutional and process variations and the heterogeneity of EHRs across the sites participating in the case study. The experiment demonstrates the necessity to have a standardized process for data abstraction when conducting EHR-based clinical studies.