Skip to main content
. 2018 Jun 27;8(6):e021640. doi: 10.1136/bmjopen-2018-021640

Figure 1.

Figure 1

Diagram of the algorithms for the identification of patients with resistant (cases) and controlled (control) hypertension in Vanderbilt University Medical Center’s Synthetic Derivative of the electronic health record. BPs, blood pressures; DBP, diastolic blood pressure; HTN, hypertension; ICD-9, International Classification of Disease, Ninth Revision; SBP, systolic blood pressure.