Journal Article
Study

Matching identifiers in electronic health records: implications for duplicate records and patient safety.

McCoy AB; Wright A; Kahn MG; Shapiro JS; Bernstam EV; Sittig DF.

The presence of duplicate records (a single patient having multiple medical records within the same system) is a risk factor for preventable errors. This study at five academic medical centers found that duplicate records were common, with the incidence varying widely across centers.