Identifying and Understanding Data Quality Issues in a Pediatric Distributed Research Network

A prerequisite for building a clinical data research network is that the quality of the aggregated data be wellunderstood. As part of a newly-formed EHR-based pediatric research network, a set of systematic data quality checks were implemented and executed on the data. This study contributes by providing a detailed account of the types and sources of encountered issues, and a longitudinal distribution of issues across the partner sites in the network.