The Geriatric Emergency Care Applied Research Standardization Study ( <scp>GEARSS</scp> ): An Observational Study of Older Emergency Department Patients

In GEARSS, demographic variables aligned strongly between prospective and EHR data, while diagnosis, disposition, and mentation factors did not. This multicenter data source provides preliminary findings for common geriatric syndromes and conditions. Choice of measures using these data should be driven by GED research questions.