Race/ethnic differences in guideline recommended hypertension medications in VHA

NIH RePORTER · VA · IK2 · · view on reporter.nih.gov ↗

Abstract

Among Veterans, hypertension is the most common chronic condition with a prevalence of 37% and can lead to stroke, myocardial infarction, chronic kidney disease, and heart failure. Among blacks, hypertension occurs earlier in life, is more prevalent and severe, and is less likely to be controlled. While control of hypertension has significantly improved over recent years in the Veterans Affairs (VA), from 46% in 2000 to 76% in 2010, disparities persist among blacks, and reasons are not well understood. The Joint National Committee (JNC) publishes guidelines on evidence-based medications for hypertension treatment. However, controversy remains regarding the target blood pressure (BP) to achieve with therapy. The recently published Systolic Blood Pressure Intervention Trial (SPRINT), a landmark clinical trial, is anticipated to lead to changes in hypertension practices for patients with increased cardiovascular disease risk and without a history of diabetes. Investigators reported a reduction of systolic BP to <120 mm Hg (vs < 140 mm Hg) was associated with a lower incidence of cardiovascular-events, - mortality, and all-cause mortality for both black and nonblack patients. The extent to which systolic BP control of <120 mm Hg is achieved in VA is unknown. Special focus is needed for the VA group at highest risk for uncontrolled BP, black Veterans. This group is expected to grow at least 3% from 11% of Veterans in 2014 to 14% by 2034. The goals of this project are: Aim 1. To examine, one year following Veterans’ incident hypertension diagnosis, patient level predictors of (1) use of guideline-recommended medications and (2) BP control among Veterans and to describe how the effect of these predictors varies by race; Aim 2. To identify provider and facility level predictors of use of guideline-recommended medications and BP control among Veterans with incident hypertension and to describe how the effect of these predictors varies by race using mixed-methods; and Aim 3. To develop and pilot test a provider/team focused informatics strategy to facilitate hypertension control with enhanced features for racial minority Veterans. Aims 1-2 involve a longitudinal retrospective cohort study of black and white Veterans from VA facilities nationwide with incident hypertension 2007-2012 and examining outcomes of (1) prescriptions for JNC7 guideline-recommended medications and (2) controlled hypertension 1-year after incident hypertension diagnosis. Using regression models, patient- (Aim 1), provider- and facility-level (Aim 2) variables will be identified that are predictors for not receiving of guideline-recommended medications for hypertension and/or lack of BP control at 1-year of follow-up. Aims 1-2 further examine how these predictors vary by race. The qualitative analysis for Aim 2 will include chart review using natural language processing methods and a total of 36 telephone interviews with Patient Aligned Care Team (PACT) providers from 4 VA facilities ...

Key facts

NIH application ID
10186551
Project number
5IK2HX002609-04
Recipient
VA SALT LAKE CITY HEALTHCARE SYSTEM
Principal Investigator
April F Mohanty
Activity code
IK2
Funding institute
VA
Fiscal year
2021
Award amount
Award type
5
Project period
2017-02-01 → 2023-03-31