Understanding data requirements of retrospective studies.

ABSTRACT:

Background and objective

Usage of data from electronic health records (EHRs) in clinical research is increasing, but there is little empirical knowledge of the data needed to support multiple types of research these sources support. This study seeks to characterize the types and patterns of data usage from EHRs for clinical research.

Materials and methods

We analyzed the data requirements of over 100 retrospective studies by mapping the selection criteria and study variables to data elements of two standard data dictionaries, one from the healthcare domain and the other from the clinical research domain. We also contacted study authors to validate our results.

Results

The majority of variables mapped to one or to both of the two dictionaries. Studies used an average o

SUBMITTER: Shenvi EC 

PROVIDER: S-EPMC6626658 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature