Disparities In Blood Pressure Control Research Articles

Age and sex disparities in blood pressure control and therapeutic inertia: Impact of a quality improvement program

ObjectiveHypertension quality improvement programs reduce uncontrolled blood pressure (BP) but impact may differ by sex and age. MethodsThis study examined uncontrolled BP, defined as a BP ≥ 140/90 mmHg, and therapeutic inertia, defined as absence of medication initiation or escalation during visits with uncontrolled BP, by sex and by age group (19–40, 41–65, 66–75, and 76+ years) during a 12 month follow-up period among 21, 861 patients with hypertension and ≥ two visits in primary care clinics enrolled in the American Medical Association (AMA) Measure Accurately, Act Rapidly, and Partner with Patients (MAP) BP hypertension quality improvement program. ResultsThe mean age was 64.8 years (standard deviation [SD 12.8]) and ranged from 19 to 87 years; 53.6% were female. In age groups 19–40, 41–65, 66–75, 76–87 years, uncontrolled BP at the first clinic visit was present in 51.5%, 42.5%, 37.5% and 36.6% of males, respectively, and in 40.0%, 38.0%, 36.0% and 39.6% of females, respectively. Based on vital signs at the first vs. last clinic visit, the proportion of patients with uncontrolled BP in age groups 19–40, 41–65, 66–75 years declined by 19.4%, 13.5%, 10.1% and 8.7% in males, respectively, and 14.4%, 12.5%, 9.3%, and 8.4%, among females, respectively. Therapeutic inertia ranged from 66.5% and 75.9% of clinic visits among males and females age 19–40 years, to 85.6% and 84.9% of clinic visits among males and females age 76–87 years, respectively. The proportion of clinic visits with therapeutic inertia was lower among males vs. females across all age groups until age 76–87 years. ConclusionA quality improvement program improves BP control but declines in uncontrolled BP are larger and therapeutic inertia is lower for younger vs. older age groups and for males vs. females. More interventions are needed to reduce sex and age disparities in hypertension management.

Factors Influencing Antihypertensive Medication Adherence Among Historically Underrepresented Adults: A Meta-analysis.

Addressing disparities in blood pressure control must include supporting antihypertensive medication adherence (MA). Developing effective MA interventions requires identifying the most important factors influencing MA. In this review, the authors aimed to meta-analyze the results of research testing associations between factors potentially influencing antihypertensive MA and assessed antihypertensive MA in historically underrepresented populations. Additional exploratory analyses focused on system-level factors, which have been understudied and may particularly impact disparities in MA. A health sciences librarian assisted with searching across 10 databases. Inclusion criteria included (1) published in English, (2) sample of adults with hypertension, (3) ≥50% of participants having self-identified as a race/ethnicity underrepresented in the country where the study was conducted, and (4) reporting sufficient data to calculate effect size(s). Fifty-eight studies were eligible for inclusion. Nine factors met criteria for planned analyses. Older age (r = 0.08, P < .01; k = 26 studies) and higher income (r = 0.11, P = .01; k = 15) were significantly correlated with better MA. Having depressive symptoms was significantly correlated with worse MA (r = -0.18, P < .01; k = 11). Effect sizes for sex, education level, marital status, number of medications, comorbidities, and perceived social support were not significant. System-level factors examined included insurance coverage, access to healthcare, perceived barriers, having a primary care provider, perceptions of their healthcare provider, and experiences of discrimination in healthcare. Understanding the impact of factors associated with antihypertensive MA in historically underrepresented adults can support development of targeted, culturally relevant MA interventions. Future research should examine the impact of system-level factors on antihypertensive MA among historically underrepresented populations.

Blood Pressure Control Among Black and White Adults Following a Quality Improvement Program in a Large Integrated Health System

A higher percentage of non-Hispanic Black (hereinafter, Black) adults vs non-Hispanic White (hereinafter, White) adults with hypertension have uncontrolled blood pressure (BP) contributing to racial and ethnic disparities in cardiovascular disease. In 2010, Kaiser Permanente Southern California began implementing quality improvement (QI) strategies aimed at reducing this disparity. To examine the change in BP control between Black and White patients before and after the implementation of a QI program. A QI quasi-experimental, difference-in-difference analysis was conducted of Kaiser Permanente Southern California patients 18 years or older included in the population care management hypertension registry. The study was conducted from December 31, 2008, to December 31, 2019. Data analysis was performed from November 20, 2020, to November 7, 2022. Quality improvement program implementation began in 2010. Blood pressure control (systolic BP <140 mm Hg and diastolic BP <90 mm Hg) was assessed using the last outpatient BP measurement in each calendar year. Changes in BP control between Black and White patients from before (2008-2009) to after (2016-2019) implementation of the QI program were examined using a difference-in-difference analysis. Blood pressure control disparities from 2008 through 2019 by age, sex, race and ethnicity, and factors associated with BP control were examined. The number of patients with hypertension increased from 624 094 in 2008 (mean [SD] age, 61.8 [13.5] years; 330 551 [53.0%] female patients; 89 407 [14.3%] Black and 284 116 [45.5%] White patients) to 855 257 in 2019 (mean [SD] age, 64.5 [13.6] years; 444 422 [52.0%] female patients; 107 054 [12.5%] Black and 331 932 [38.8%] White patients). Blood pressure control increased an absolute 4.6% (95% CI, 4.3%-4.8%) among Black patients and 2.1% (95% CI, 2.0%-2.2%) among White patients from before to after the QI program implementation (difference-in-difference: 2.5%; 95% CI, 2.2%-2.8%). The largest reduction in BP control disparity between Black and White female patients was for those aged 50 to 64 years (difference-in-difference: 3.8%; 95% CI, 3.2%-4.4%) and for those aged 18 to 49 years between Black and White male patients (difference-in-difference: 4.2%; 95% CI, 3.0%-5.5%). The proportion of BP control among Black male patients aged 18 to 49 years was the lowest throughout 2008-2019 compared with male and female patients in other age and racial and ethnic groups. In 2019, uncontrolled BP was more common among Black vs White patients (prevalence ratio: 1.13; 95% CI, 1.12-1.14). This QI program noted that disparities in BP control between Black and White patients were decreased but not eliminated following implementation of QI strategies aimed at reducing disparities in BP control. These findings suggest that more focused interventions may be needed to increase BP control among Black individuals.

Racial and Ethnic Disparities in Hypertension: Barriers and Opportunities to Improve Blood Pressure Control.

To characterize the barriers and opportunities associated with racial and ethnic disparities in blood pressure (BP) control. Blood pressure (BP) control rates in the USA have worsened over the last decade, with significantly lower rates of control among people from racial and ethnic minority groups, with non-Hispanic (NH) Black persons having 10% lower control rates compared to NH White counterparts. Many factors contribute to BP control including key social determinants of health (SDoH) such as health literacy, socioeconomic status, and access to healthcare as well as low awareness rates and dietary habits. Numerous pharmacologic and non-pharmacologic interventions have been developed to reduce racial and ethnic disparities in BP control. Among these, dietary programs designed to help reduce salt intake, faith-based interventions, and community-based programs have found success in achieving better BP control among people from racial and ethnic minority groups. Disparities in the prevalence and management of hypertension persist and remain high, particularly among racial and ethnic minority populations. Ongoing efforts are needed to address SDoH along with the unique genetic, social, economic, and cultural diversity within these groups that contribute to ongoing BP management inequalities.

Addressing global disparities in blood pressure control: perspectives of the International Society of Hypertension.

Raised blood pressure (BP) is the leading cause of preventable death in the world. Yet, its global prevalence is increasing, and it remains poorly detected, treated, and controlled in both high- and low-resource settings. From the perspective of members of the International Society of Hypertension based in all regions, we reflect on the past, present, and future of hypertension care, highlighting key challenges and opportunities, which are often region-specific. We report that most countries failed to show sufficient improvements in BP control rates over the past three decades, with greater improvements mainly seen in some high-income countries, also reflected in substantial reductions in the burden of cardiovascular disease and deaths. Globally, there are significant inequities and disparities based on resources, sociodemographic environment, and race with subsequent disproportionate hypertension-related outcomes. Additional unique challenges in specific regions include conflict, wars, migration, unemployment, rapid urbanization, extremely limited funding, pollution, COVID-19-related restrictions and inequalities, obesity, and excessive salt and alcohol intake. Immediate action is needed to address suboptimal hypertension care and related disparities on a global scale. We propose a Global Hypertension Care Taskforce including multiple stakeholders and societies to identify and implement actions in reducing inequities, addressing social, commercial, and environmental determinants, and strengthening health systems implement a well-designed customized quality-of-care improvement framework.

Reducing ethnic and racial disparities by improving undertreatment, control, and engagement in blood pressure management with health information technology (REDUCE-BP) hybrid effectiveness-implementation pragmatic trial: Rationale and design

While racial/ethnic disparities in blood pressure control are documented, few interventions have successfully reduced these gaps. Under-prescribing, lack of treatment intensification, and suboptimal follow-up care are thought to be central contributors. Electronic health record (EHR) tools may help address these barriers and may be enhanced with behavioral science techniques. To evaluate the impact of a multicomponent behaviorally-informed EHR-based intervention on blood pressure control. Reducing Ethnic and racial Disparities by improving Undertreatment, Control, and Engagement in Blood Pressure management with health information technology (REDUCE-BP) (NCT05030467) is a two-arm cluster-randomized hybrid type 1 pragmatic trial in a large multi-ethnic health care system. Twenty-four clinics (>350 primary care providers [PCPs] and >10,000 eligible patients) are assigned to either multi-component EHR-based intervention or usual care. Intervention clinic PCPs will receive several EHR tools designed to reduce disparities delivered at different points, including a: (1) dashboard of all patients visible upon logging on to the EHR displaying blood pressure control by race/ethnicity compared to their PCP peers and (2) set of tools in an individual patient's chart containing decision support to encourage treatment intensification, ordering home blood pressure measurement, interventions to address health-related social needs, default text for note documentation, and enhanced patient education materials. The primary outcome is patient-level change in systolic blood pressure over 12 months between arms; secondary outcomes include changes in disparities and other clinical outcomes. REDUCE-BP will provide important insights into whether an EHR-based intervention designed using behavioral science can improve hypertension control and reduce disparities.

Abstract P300: Patterns Of Adherence To Home Blood Pressure Monitoring Among Men And Women In The Electronic Framingham Heart Study

Blood pressure (BP) measures in women more sharply increase with age compared with men, with a widening disparity in older women. The use of home blood pressure monitoring (HBPM) among women may improve this inequity. However, sex-related differences in adherence to HBPM are not well understood. We analyzed data from electronic Framingham Heart Study participants who were given a Withings digital BP cuff and instructed to perform HBPM weekly for 1 year. Adherence was defined as ≥1 BP measurement per week, averaged over 4-week segments. HTN status was self-reported. Group-based trajectory modeling (GBTM) was used to identify trajectory patterns of adherence. We investigated the association of 3 adherence patterns with HTN status stratified by sex using multinomial logistic models adjusting for age group, marital status, education, employment status, income, non-BP cardiac medication use, subjective health, depression and anxiety. Among 1,048 participants (59% female, mean age 53±9 years, 25% with HTN), we identified 3 trajectory groups corresponding to distinct patterns of HBPM adherence: early discontinuation (N = 458, 58% female, 21% HTN), gradual decrease (N = 360, 60% female, 27% HTN), and high adherence (N = 230, 57% female, 31% HTN, Figure 1 ). Women with HTN compared to women without HTN had 80% higher odds of being in the high adherence group versus early discontinuation group (aOR 1.80; 95% CI 1.02-3.17). This pattern was not observed for men (aOR 1.12; 95% CI 0.68-1.63). In this middle-aged eCohort, HTN was associated with high adherence to HBPM in women but not men. The targeted prescription of HBPM for woman should be studied to see if it can reduce sex disparities in BP control.

Abstract 054: Hypertension Treatment And Control In A New York City Healthcare System

Background: We investigated the prevalence of and patient characteristics correlated with hypertension control in the Montefiore Health System, a large and predominantly minority healthcare system with locations in New York City and Southern portion of Upstate New York. Methods: Using outpatient care data, we included all individuals with hypertension defined by ICD 9/10 codes during 2018. Treatment and control status were defined by the presence of prescribed antihypertensive medication(s) and measured blood pressure (BP): Joint National Commission (JNC) criteria - &lt; 140 / 90 mmHg; or American Heart Association/American College of Cardiology (AHA/ACC) criteria - &lt;130 / 80 mmHg. We report the distribution of hypertension treatment and control by age, sex, and race/ethnicity. Results: Among 74,487 hypertensive patients [mean age 62 years ±14), 62% female, predominantly Black (42%) and Hispanic (41%), and low SES (-2.91 ±2.90)], 57% were treated, of which 57% had achieved BP control by JNC criteria and 23% by AHA/ACC criteria. Compared with untreated patients, those prescribed treatments were older (61%), more likely to be NH Black or Hispanic (60%), and report one or more comorbidities (76%) (all p&lt;0.0001). Prevalence of BP control by JNC criteria was lowest for NH Black (53%, p&lt;0.0001) and Hispanic (58%, p&lt;0.0001) patients than NH White and Asian (64%), and highest in patients ≥60 years (63%, p&lt;0.0001) and those with comorbidities (89%, p=0.002). Similar discrepancies were apparent at the 130/80 mmHg threshold. BP control characteristics did not vary by sex. Conclusions: Hypertension treatment and control rates in a large, urban health system were significantly lower than reported national averages. Overall, NH Whites had a lower likelihood of hypertension treatment; NH Black and Hispanic patients had significantly lower prevalence of control compared with other racial/ethnic groups, despite having higher treatment rates. Disparities in BP control by patient characteristics was heightened with the AHA/ACC criteria.

Biological and Social Determinants of Hypertension Severity Before vs After Intracerebral Hemorrhage.

Although blood pressure (BP) control is considered the most effective measure to prevent functional decline after intracerebral hemorrhage (ICH), fewer than half of survivors achieve treatment goals. We hypothesized that long-term (i.e., prehemorrhage) hypertension severity may be a crucial factor in explaining poor BP control after ICH. We investigated changes in hypertension severity after vs before ICH using latent class analysis (LCA) and identified patient characteristics predictive of individuals' BP trajectories. We analyzed data for ICH survivors enrolled in a study conducted at Massachusetts General Hospital (MGH) from 2002 to 2019 in Boston, a high-resource setting with near-universal medical insurance coverage. We captured BP measurements in the 12 months preceding and following the acute ICH hospitalization. Using LCA, we identified patient groups (classes) based on changes in hypertension severity over time in an unbiased manner. We then created multinomial logistic regression models to identify patient factors associated with these classes. Among 336 participants, the average age was 74.4 years, 166 (49%) were male, and 288 (86%) self-reported White race/ethnicity. LCA identified 3 patient classes, corresponding to minimal (n = 114, 34%), intermediate (n = 128, 38%), and substantial (n = 94, 28%) improvement in hypertension severity after vs before ICH. Survivors with undertreated (relative risk ratio [RRR] 0.05, 95% CI 0.01-0.23) or resistant (RRR 0.03, 95% CI 0.01-0.06) hypertension before ICH were less likely to experience substantial improvement afterwards. Residents of high-income neighborhoods were more likely to experience substantial improvement (RRR 1.14 per $10,000, 95% CI 1.02-1.28). Black, Hispanic, and Asian participants with uncontrolled hypertension before ICH were more likely to experience minimal improvement after hemorrhagic stroke (interaction p < 0.001). Most ICH survivors do not display consistent improvement in hypertension severity after hemorrhagic stroke. BP control after ICH is profoundly influenced by patient characteristics predating the hemorrhage, chiefly prestroke hypertension severity and socioeconomic status. Neighborhood income was associated with hypertension severity after ICH in a high-resource setting with near-universal health care coverage. These findings likely contribute to previously documented racial/ethnic disparities in BP control and clinical outcomes following ICH.

Association of Differences in Treatment Intensification, Missed Visits, and Scheduled Follow-up Interval With Racial or Ethnic Disparities in Blood Pressure Control

Black patients with hypertension often have the lowest rates of blood pressure (BP) control in clinical settings. It is unknown to what extent variation in health care processes explains this disparity. To assess whether and to what extent treatment intensification, scheduled follow-up interval, and missed visits are associated with racial and ethnic disparities in BP control. In this cohort study, nested logistic regression models were used to estimate the likelihood of BP control (defined as a systolic BP [SBP] level <140 mm Hg) by race and ethnicity, and a structural equation model was used to assess the association of treatment intensification, scheduled follow-up interval, and missed visits with racial and ethnic disparities in BP control. The study included 16 114 adults aged 20 years or older with hypertension and elevated BP (defined as an SBP level ≥140 mm Hg) during at least 1 clinic visit between January 1, 2015, and November 15, 2017. A total of 11 safety-net clinics within the San Francisco Health Network participated in the study. Data were analyzed from November 2019 to October 2020. Blood pressure control was assessed using the patient's most recent BP measurement as of November 15, 2017. Treatment intensification was calculated using the standard-based method, scored on a scale from -1.0 to 1.0, with -1.0 being the least amount of intensification and 1.0 being the most. Scheduled follow-up interval was defined as the mean number of days to the next scheduled visit after an elevated BP measurement. Missed visits measured the number of patients who did not show up for visits during the 4 weeks after an elevated BP measurement. Among 16 114 adults with hypertension, the mean (SD) age was 58.6 (12.1) years, and 8098 patients (50.3%) were female. A total of 4658 patients (28.9%) were Asian, 3743 (23.2%) were Black, 3694 (22.9%) were Latinx, 2906 (18.0%) were White, and 1113 (6.9%) were of other races or ethnicities (including American Indian or Alaska Native [77 patients (0.4%)], Native Hawaiian or Pacific Islander [217 patients (1.3%)], and unknown [819 patients (5.1%)]). Compared with patients from all racial and ethnic groups, Black patients had lower treatment intensification scores (mean [SD], -0.33 [0.26] vs -0.29 [0.25]; β = -0.03, P < .001) and missed more visits (mean [SD], 0.8 [1.5] visits vs 0.4 [1.1] visits; β = 0.35; P < .001). In contrast, Asian patients had higher treatment intensification scores (mean [SD], -0.26 [0.23]; β = 0.02; P < .001) and fewer missed visits (mean [SD], 0.2 [0.7] visits; β = -0.20; P < .001). Black patients were less likely (odds ratio [OR], 0.82; 95% CI, 0.75-0.89; P < .001) and Asian patients were more likely (OR, 1.13; 95% CI, 1.02-1.25; P < .001) to achieve BP control than patients from all racial or ethnic groups. Treatment intensification and missed visits accounted for 21% and 14%, respectively, of the total difference in BP control among Black patients and 26% and 13% of the difference among Asian patients. This study's findings suggest that racial and ethnic inequities in treatment intensification may be associated with more than 20% of observed racial or ethnic disparities in BP control, and racial and ethnic differences in visit attendance may also play a role. Ensuring more equitable provision of treatment intensification could be a beneficial health care strategy to reduce racial and ethnic disparities in BP control.

Racial Differences in Blood Pressure Control Following Stroke: The REGARDS Study.

In the general population, Black adults are less likely than White adults to have controlled blood pressure (BP), and when not controlled, they are at greater risk for stroke compared with White adults. High BP is a major modifiable risk factor for recurrent stroke, but few studies have examined racial differences in BP control among stroke survivors. We used data from the REGARDS study (Reasons for Geographic and Racial Differences in Stroke) to examine disparities in BP control between Black and White adults, with and without a history of stroke. We studied participants taking antihypertensive medication who did and did not experience an adjudicated stroke (n=306 and 7693 participants, respectively) between baseline (2003-2007) and a second study visit (2013-2016). BP control at the second study visit was defined as systolic BP <130 mm Hg and diastolic BP <80 mm Hg except for low-risk adults ≥65 years of age (ie, those without diabetes, chronic kidney disease, history of cardiovascular disease, and with a 10-year predicted atherosclerotic cardiovascular disease risk <10%) for whom BP control was defined as systolic BP <130 mm Hg. Among participants with a history of stroke, 50.3% of White compared with 39.3% of Black participants had controlled BP. Among participants without a history of stroke, 56.0% of White compared with 50.2% of Black participants had controlled BP. After multivariable adjustment, there was a tendency for Black participants to be less likely than White participants to have controlled BP (prevalence ratio, 0.77 [95% CI, 0.59-1.02] for those with a history of stroke and 0.92 [95% CI, 0.88-0.97] for those without a history of stroke). There was a lower proportion of controlled BP among Black compared with White adults with or without stroke, with no statistically significant differences after multivariable adjustment.

Evaluation of a collaborative VA network initiative to reduce racial disparities in blood pressure control among veterans with severe hypertension

BackgroundCompared to White patients in the United States, Black patients have a higher prevalence of hypertension and more severe forms of this condition. ObjectiveTo decrease racial disparities in blood pressure (BP) control among Black veterans with severe hypertension within a regional network of Veterans Affairs Medical Centers (VAMCs). MethodsHealth system leaders, clinicians, and health services researchers collaborated on a 12-month quality improvement (QI) project to: (1) examine project implementation and the QI strategies used to improve BP control and (2) assess the effect of the initiative on Black-White differences in BP control among veterans with severe hypertension. ResultsWithin 9 participating VAMCs, the most frequently used QI strategies involved provider education (n=9), provider audit and feedback (n=8), and health care team change (n=7). Among 141,124 veterans with a diagnosis of hypertension, 9,913 had severe hypertension [2,533 (25.6%) Black and 7380 (74.4%) White]. Over the course of the project, the proportion of Black veterans with severe hypertension decreased from 7.5% to 6.6% (p=.002) and the racial difference in proportions for this condition decreased 0.9 percentage points, from 2.9% to 2.0% (p=.01). ConclusionsA multicenter, equity-focused QI project in VA reduced the proportion of Black veterans with severe hypertension and ameliorated observed racial disparities for this condition. Embedding health services researchers within a QI team facilitated an evaluation of the processes and effectiveness of our initiative, providing a successful model for QI within a learning health care system.

Abstract 17207: Impact of Racial Differences in Treatment Intensification and Missed Visits on Disparities in BP Control

Introduction: Hypertensive black patients have the lowest rates of blood pressure (BP) control. It is unknown to what extent variation in healthcare processes like treatment intensification (TI) and missed visits explain this disparity. Hypothesis: We hypothesized there would be no racial differences in TI but missed visits would be more frequent among black patients and mediate a sizable percentage of BP control disparities. Methods: We used a structural equation multivariate regression model to estimate the likelihood of BP control (BP&lt;140/90 mm Hg) in black vs. white hypertensive patients, mediated by TI and missed visits. We included 6,556 patients who had diagnosis of hypertension and at least one clinic visit with uncontrolled BP (≥140/90 mm Hg) in 12 safety-net clinics in San Francisco from 2015-2017.We used the standard-based method (SBM), which is predictive of BP control, to calculate TI (dose increase or medication addition). We measured missed visits as the number of “no-shows” in the four weeks after an uncontrolled BP. BP control was defined based on the most recent BP as of Nov 15, 2017. The model adjusted for gender, age, first recorded BP between Jan 2015 and Nov 2017, visit frequency, and diagnosis of diabetes. Results: The mean (SD) age was 57.0 (11.2), 41% were female, and 44% were black. Compared to whites, blacks had more missed opportunities for TI (β=-0.02, p&lt;0.001) and missed more visits (β=0.37, p&lt;0.001). After accounting for these differences, black patients remained less likely than whites to achieve BP control (β=0.16, OR=0.85, 95% CI=0.76-0.95). The indirect effect of decreased TI and missed visits accounted for 22% and 13% of the total effect of black race on BP control, respectively (Figure). Conclusion: Racial inequities in treatment intensification may be responsible for over 20 percent of racial disparities in hypertension. Efforts to ensure more equitable treatment intensification may reduce black-white disparities in BP control.

The RICH LIFE Project: A cluster randomized pragmatic trial comparing the effectiveness of health system only vs. health system Plus a collaborative/stepped care intervention to reduce hypertension disparities

RICH LIFE is a two-arm, cluster-randomized trial, comparing the effectiveness of enhanced standard of care, "Standard of Care Plus" (SCP), to a multi-level intervention, "Collaborative Care/Stepped Care" (CC/SC), for improving blood pressure (BP) control and patient activation and reducing disparities in BP control among 1890 adults with uncontrolled hypertension and at least one other cardiovascular disease risk factor treated at 30 primary care practices in Maryland and Pennsylvania. Fifteen practices randomized to the SCP arm receive standardized BP measurement training; race/ethnicity-specific audit and feedback of BP control rates; and quarterly webinars in management practices, quality improvement and disparities reduction. Fifteen practices in the CC/SC arm receive the SCP interventions plus implementation of the collaborative care model with stepped-care components (community health worker referrals and virtual specialist-panel consults). The primary clinical outcome is BP control (<140/90 mm Hg) at 12 months. The primary patient-reported outcome is change from baseline in self-reported patient activation at 12 months. This study will provide knowledge about the feasibility of leveraging existing resources in routine primary care and potential benefits of adding supportive community-facing roles to improve hypertension care and reduce disparities. Clinicaltrials.govNCT02674464.

The PCORnet Blood Pressure Control Laboratory: A Platform for Surveillance and Efficient Trials.

Uncontrolled blood pressure (BP) is a leading preventable cause of death that remains common in the US population despite the availability of effective medications. New technology and program innovation has high potential to improve BP but may be expensive and burdensome for patients, clinicians, health systems, and payers and may not produce desired results or reduce existing disparities in BP control. The PCORnet Blood Pressure Control Laboratory is a platform designed to enable national surveillance and facilitate quality improvement and comparative effectiveness research. The platform uses PCORnet, the National Patient-Centered Clinical Research Network, for engagement of health systems and collection of electronic health record data, and the Eureka Research Platform for eConsent and collection of patient-reported outcomes and mHealth data from wearable devices and smartphones. Three demonstration projects are underway: BP track will conduct national surveillance of BP control and related clinical processes by measuring theory-derived pragmatic BP control metrics using electronic health record data, with a focus on tracking disparities over time; BP MAP will conduct a cluster-randomized trial comparing effectiveness of 2 versions of a BP control quality improvement program; BP Home will conduct an individual patient-level randomized trial comparing effectiveness of smartphone-linked versus standard home BP monitoring. Thus far, BP Track has collected electronic health record data from over 826 000 eligible patients with hypertension who completed ≈3.1 million ambulatory visits. Preliminary results demonstrate substantial room for improvement in BP control (<140/90 mm Hg), which was 58% overall, and in the clinical processes relevant for BP control. For example, only 12% of patients with hypertension with a high BP measurement during an ambulatory visit received an order for a new antihypertensive medication. The PCORnet Blood Pressure Control Laboratory is designed to be a reusable platform for efficient surveillance and comparative effectiveness research; results from demonstration projects are forthcoming.

Race-Specific Patterns of Treatment Intensification Among Hypertensive Patients Using Home Blood Pressure Monitoring: Analysis Using Defined Daily Doses in the Heart Healthy Lenoir Study.

Racial disparities in blood pressure (BP) control persist, but whether differences by race in antihypertensive medication intensification (AMI) contribute is unknown. To compare AMI by race for patients with elevated home BP readings. This prospective cohort study followed adult patients from 6 rural primary care practices who used home BP monitoring (HBPM) and recorded/reported values. For providers, AMI was encouraged when mean HBPM systolic blood pressure (SBP) values were ⩾135 mm Hg; patients received phone-based coaching on HBPM technique and sharing HBPM findings. AMI was assessed between baseline and 12 months using defined daily dose (DDD) and summed to create a total antihypertensive DDD value. A total of 217 patients (mean age = 61.4 ± 10.2 years; 66% female; 57% black) provided usable HBPM data. Among 90 (41%) intensification-eligible hypertensive patients (ie, mean HBPM SBP values for 6-months ⩾135 mm Hg), mean total antihypertensive DDD was increased in 61% at 12 months. Blacks had significantly higher mean DDD at baseline and 12 months, but intensification (+0.72 vs +0.65; P = 0.83) was similar by race. However, intensification was greater in males than females (+1.1 vs +0.39; P = 0.031). Reduction in mean SBP following intensification was greater in white versus black patients (-8.2 vs -3.9 mm Hg; P = 0.14). Conclusion/Relevance: Treatment intensification in HBPM users was similar by race, differed significantly by gender, and may produce a greater response in white patients. Differential AMI in HBPM users does not appear to contribute to persistent racial disparities in BP control.

Novel Interventions in Addressing Racial Disparities in Blood Pressure Control: Potential Utilization of Barbershops in Black Men.

Novel Interventions in Addressing Racial Disparities in Blood Pressure Control: Potential Utilization of Barbershops in Black Men.

Ethnic and racial disparities in hypertension management among women

Hypertension is a major independent risk factor for cardiovascular disease for all ethnic and racial groups. Compared with other lifestyle and metabolic risk factors, hypertension is the leading cause of death in women. Women with preeclampsia are three times more likely to develop chronic hypertension and have an elevated risk of future cardiovascular disease. The objective of this article is to provide a review of the factors related to racial and ethnic disparities in blood pressure control. This is followed by a summary of contemporary clinical practice guidelines for the prevention, through lifestyle behavioral modification, and treatment of hypertension with pharmacotherapy.

Practice Level Costs of Office-Based Hypertension Performance Improvement: The Heart Healthy Lenoir Study.

Primary care practice leaders who consider engaging in quality improvement (QI) need to understand the practice level costs incurred when asking staff to take on new tasks. The Heart Healthy Lenoir study is a prospective cohort trial in which QI methods were used to enhance hypertension (HTN) care and reduce racial disparities in blood pressure control in small rural primary care practices in North Carolina. As part of this effort, we performed an activity-based costing analysis to describe the costs incurred to develop, implement, and maintain key tasks.We interviewed 20 practice stakeholders and phone-based health coaches during 2012-2014. We calculated the time invested by individuals to perform each task within each study phase and applied national hourly wages to generate cost estimates. Our descriptive analyses focus on four of the most widely used practices. Activities included time to abstract HTN control data, participate in project meetings, identify patients with uncontrolled HTN, create standardized work, and provide additional health coaching for patients with uncontrolled HTN. Despite practice and staffing differences, the developmental phase costs were similar, ranging from $879 to $1,417. Implementation costs varied more widely as practices took different approaches to identifying patients with uncontrolled HTN. Practice-specific phone health coaching costs ranged from $19,508 to more than $38,000. This study adds to the growing literature regarding practice level costs of engaging in systems change. Understanding these costs and balancing them against practice incentives may be helpful as stakeholders make decisions regarding HTN QI.

Abstract MP64: Trends in Racial Differences in Control of Hypertension, 2008-2014

Background: Racial disparities in blood pressure control in the U.S. have been well documented. In 2010, Kaiser Permanente Southern California (KPSC), a large and diverse integrated health care delivery system that provides care to over 4 million members, implemented a series of changes in health care delivery to address the disparity in hypertension control. Key elements included changes to the care team, patient activation, meaningful use of health information technology, and leadership vision. Methods: We examined trends in hypertension control between 2008 and 2014 by race/ethnicity in KPSC members aged 18 years and older. Patients with hypertension were identified from the KPSC POINT® (Permanente Online Interactive Network Tool) population care management hypertension registry. Blood pressure control was defined according to JNC-7 criteria in the fourth quarter of each calendar year from 2008 through 2014. Results: Between 2008 and 2014, the hypertension population increased from 624,493 to 745,382, while the prevalence was stable (25.9% in 2008 and 25.6% in 2014). During this period, the proportion of Whites and Blacks decreased slightly from 45.4% to 43.0% and 14.3% to 13.5%, respectively, while the proportion of Hispanics and Asian/Pacific Islanders increased from 25.2% to 29.0% and 9.8% to 11.3%, respectively. Hypertension control increased from 74.0% in 2008 to 83.8% in 2014 and increased across age, sex, and racial/ethnic groups (Figure). Blacks had the largest improvement in hypertension control (68.8% to 80.8%), which was primarily driven by those aged 65+ years. The disparity in hypertension control between Whites and Blacks decreased from 6.9% to 5% between 2008 and 2014. Conclusions: While ecologic in nature, the secular increases in hypertension control suggest that implementation of a series of system-wide changes can affect all subpopulations.