PTSC: Improving Hypertension Control Among Poor Midlife African American Women

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

359 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-07-14

Study Completion Date

2020-07-31

Brief Summary

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African American women are more likely to suffer higher rates of uncontrolled hypertension than non-Hispanic white women. Prime Time Sister Circles® (PTSC) empowers women to proactively manage their blood pressure by promoting the effective use of preventive health care; encouraging self monitoring of blood pressure, and teaching strategies for managing stress, increasing physical activity, and improving nutrition. The 12-week community-based, holistic lifestyle intervention aims to improve blood pressure control by improving health knowledge, health efficacy, and health behaviors. PTSC potentially reduces health care costs through prevention, earlier detection, and improved management of hypertension through a culturally tailored program addressing specific barriers experienced by midlife and late life African American women.

This 5-year study is a collaboration between The Johns Hopkins Center for Health Disparities Solutions (HCHDS), The Gaston \& Porter Health Improvement Center, Inc. (GPHIC), and the American Institutes for Research (AIR). The investigators seek to determine the impact and cost-effectiveness of the PTSC intervention among low-income African American women with uncontrolled hypertension. To do this, the investigators will randomly assign 600 women between the ages of 40 and 75 who receive their care from an federally qualified health center (FQHC) to either PTSC (n=300) or a comparison group (n=300) who will receive the PTSC intervention after they have been observed for 15 month. Using data from in person surveys and clinical measures conducted during in-person data collection meetings, the investigative team will determine if PTSC help low-income African American women effectively manage their blood pressure.

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Detailed Description

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African American women suffer significantly higher rates of hypertension than non-Hispanic white women. Forty-six to fifty percent of African American women have hypertension, compared with 31 percent of White women making it a major contributor to disparities in cardiovascular morbidity and mortality in this population from higher rates of complications, i.e., ischemic heart disease, stroke, and end-stage renal disease. Despite these statistics, African American women are less often aware of their diagnosis, less likely to have their blood pressure controlled, and less likely to be treated. From a societal perspective, high blood pressure was estimated to cost the United States approximately $93.5 billion in health care services, medications, and missed work days in 2010.

Public and private health plans, employers, and health care providers are seeking cost-effective approaches to preventing and improving management of uncontrolled hypertension (140/90 and above). Prime Time Sister Circles® (PTSC) empowers women to proactively manage their health by promoting the effective use of preventive health care; providing screening and monitoring of blood pressure and weight, and teaching strategies for managing stress, increasing physical activity, and improving nutrition. The 13-week community-based, holistic lifestyle intervention aims to improve blood pressure control and reduce health care costs through prevention, earlier detection, and improved management of hypertension through a culturally tailored program addressing specific risk factors and barriers experienced by mid to late life African American women.

The primary objective of this research project is to determine the impact and cost-effectiveness of the PTSC intervention among low-income African American women with uncontrolled hypertension. This 5-year study is a collaboration between The Johns Hopkins Center for Health Disparities Solutions (HCHDS), The Gaston \& Porter Health Improvement Center, Inc. (GPHIC), and the American Institutes for Research (AIR). Study participants will be recruited from FQHCs in Washington, DC and Baltimore, MD. These FQHCs were chosen because they are medical homes to a large number of low income midlife African American women who have hypertension. The sample, 480 African American women between the ages of 40 and 75 who receive their primary care from a FQHC, will be randomly assigned to receive the PTSC intervention (n=240) or usual care for a FQHC (n=240). Data on blood pressure, health status, health behaviors, and health care utilization will be collected through participant surveys and administrative records from the FQHCs. Blood pressure measurements and surveys will be collected at baseline, 13 weeks (end of program), 9 months (6 months after the end of the program), and 15 months (a year after the end of the program). Administrative records to track health services use and costs will be collected on an ongoing basis over the same time period. These data will be used to address the following specific aims:

Aim 1. Estimate the effectiveness of PTSC compared with usual care on blood pressure control among hypertensive, low-income, mid-to-late life African American women.

Hypothesis 1.1 Patients randomized to PTSC will have better controlled blood pressure than patients who receive usual care at the end of the intervention (13 weeks) and up to one year post intervention (15 months).

Aim 2. Estimate the effectiveness of PTSC on health knowledge, health self-efficacy, and health behaviors that contribute to risks associated with hypertension.

Hypothesis 2.1 Patients randomized to PTSC will demonstrate a greater increase in knowledge of the causes and consequences of high blood pressure than patients receiving usual care.

Hypothesis 2.2 Patients randomized to PTSC will demonstrate a greater increase in health-related self-efficacy than patients receiving usual care.

Hypothesis 2.3 Patients randomized to PTSC will practice more adaptive stress management techniques, increase their level of physical activity, and improve their diets more than patients receiving usual care.

Hypothesis 2.4 Patients randomized to PTSC will monitor their own blood pressure more regularly than patients receiving usual care.

Hypothesis 2.5: Patients randomized to PTSC will be more compliant with taking prescribed hypertension medications than patients receiving usual care.

Aim 3. Test whether there is a cost offset of PTSC for society. Hypothesis 3.1 Patients randomized to PTSC will have fewer unnecessary hospitalizations and emergency rooms visits for cardiovascular related problems than patients receiving usual care.

Hypothesis 3.2 Patients randomized to PTSC will have fewer hospital admissions for cardiovascular related problems than patients receiving usual care.

Hypothesis 3.3 The costs of providing PTSC will be offset by reductions in healthcare costs associated with health improvements for patients randomized to PTSC compared to patients receiving usual care.

FQHCs and other safety net providers are challenged to effectively manage the hypertension of their midlife African American female patients. PTSC may be a viable low-cost, community-based intervention that physicians can use as a resource for their patients to support necessary lifestyle changes and improve their health.

Conditions

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Uncontrolled Hypertension BMI Stress Medication Adherence

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The women are randomly assigned to receive the PTSC intervention or usual care from the FQHC. The intervention last for 3 months. The women are followed for 1 year after receiving the intervention

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Prime Time Sister Circle Intervention

The women in this arm participate in a Prime Time Sister Circle (PTSC). The PTSC is a multi-faceted, facilitated, curriculum- and community-based, intensive, support group intervention with 25-30 mid-life African American women per group. PTSC addresses three key modifiable health risk factors for chronic disease: unmanaged stress, physical inactivity, and unhealthy nutritional choices. It also addresses additional risk factors that contribute to unhealthy lifestyles: lack of knowledge or misinformation about major illnesses-cardiovascular disease (CVD), hypertension, diabetes, cancer, stress and depression-and the failure of African American women to prioritize their health and take proactive steps to manage their health and health outcomes. PTSC gives African American women the information, motivation, tools, skills, and consultative support they need to improve and maintain their health.

Group Type ACTIVE_COMPARATOR

Prime Time Sister Circle

Intervention Type BEHAVIORAL

The PTSC is a multi-faceted, facilitated, curriculum- and community-based, intensive, support group intervention with 25-30 mid-life African American women per group.

Usual Care

The women in the arm do not receive the intervention but provide data at baseline, 3 months, 9 months and 15 months.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Prime Time Sister Circle

The PTSC is a multi-faceted, facilitated, curriculum- and community-based, intensive, support group intervention with 25-30 mid-life African American women per group.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* diagnosed with hypertension (401)
* had a visit to the FQHC within the prior 24 months
* had an elevated blood pressure (140/90 or above) at their last visit
* able to speak English

Exclusion Criteria

* diagnosed with psychotic disorders (295.42, 295.90)
* diagnosed with dementia (290)
* diagnosed with other nutritional deficiencies (269.9)
* diagnosed with congestive heart failure (428)
* diagnosed with blindness (369.3)

Minimum Eligible Age

40 Years

Maximum Eligible Age

75 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes