Trial reportCirculation2019
Sustainability of Blood Pressure Reduction in Black Barbershops.
Trial report in Circulation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 5 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
67 citing papers in PubMed, 5 syntheses or guidelines pooled it, 121 citations in OpenAlex.
- A Systematic Review and Meta-Analysis of Ethnic Inequalities in Stroke Incidence Patterns and Trends in High-Income Countries (2015-2025).Neuroepidemiology · 2026Pooled it
- Community-Based Culturally Tailored Education Programs for Black Communities with Cardiovascular Disease, Diabetes, Hypertension, and Stroke: Systematic Review Findings.Journal of racial and ethnic health disparities · 2023Pooled it
- Effectiveness and Cost-Effectiveness of Team-Based Care for Hypertension: A Meta-Analysis and Simulation Study.Hypertension (Dallas, Tex. : 1979) · 2023Pooled it
- Health promotion interventions for African Americans delivered in U.S. barbershops and hair salons- a systematic review.BMC public health · 2021Pooled it
- Pharmacist's role in hypertension management: a review of key randomized controlled trials.Journal of human hypertension · 2020Pooled it
- Stroke Risk Reduction in Atrial Fibrillation Through Pharmacist Prescribing: A Randomized Clinical Trial.JAMA network open · 2024Trial
- Trial
- Ethnic and socioeconomic inequalities in stroke risk factors and primary prevention: the South London Stroke Register cohort study 1995-2024.EClinicalMedicine · 2026Article
- Determinants of Willingness to Receive Health Information From Neighborhood Food and Beauty Establishments: Cross-Sectional Study.JMIR public health and surveillance · 2026Article
- Renal Denervation for Hypertension: Current Evidence and Clinical Perspectives.Current atherosclerosis reports · 2025Review
- Multilevel Interventions Demonstrate Mixed Effectiveness for Improving Blood Pressure Outcomes: A Rapid Review.Healthcare (Basel, Switzerland) · 2025Review
- Application of an implementation premortem: A novel qualitative approach leveraging prospective hindsight to enhance barbershop health interventions for Black men.Translational behavioral medicine · 2025Article
- Outreach to Outcomes: Advancing HIV Care in Priority Populations.Journal of CME · 2025Article
- Effectiveness of Pharmacist-Led Intervention on Medication Adherence in Chronic Diseases: A Systematic Review of Randomized Controlled Trials.Patient preference and adherence · 2025Review
- Usual prevention in unusual settings: A scoping review of place-based health interventions in public-facing businesses.PloS one · 2025Article
- Achieving Equity in Hypertension: A Review of Current Efforts by the American Heart Association.Hypertension (Dallas, Tex. : 1979) · 2024Review
- Article
- Self-Management among Stroke Survivors in the United States, 2016 to 2021.Journal of clinical medicine · 2024Article
- Combating Chronic Disease with Barbershop Health Interventions: A Review of Current Knowledge and Potential for Big Data.The Yale journal of biology and medicine · 2024Review
- Addressing disparities in the global epidemiology of stroke.Nature reviews. Neurology · 2024Review
7 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundWe developed a new model of hypertension care for non-Hispanic black men that links health promotion by barbers to medication management by American Society of Hypertension-certified pharmacists and demonstrated efficacy in a 6-month cluster-randomized trial. The marked reduction in systolic blood pressure (BP) seen at 6 months warranted continuing the trial through 12 months to test sustainability, a necessary precondition for implementation research.
methodsWe enrolled a cohort of 319 black male patrons with systolic BP ≥140 mm Hg at baseline. Fifty-two Los Angeles County barbershops were assigned to either a pharmacist-led intervention or an active control group. In the intervention group, barbers promoted follow-up with pharmacists who prescribed BP medication under a collaborative practice agreement with patrons' primary care providers. In the control group, barbers promoted follow-up with primary care providers and lifestyle modification. After BP assessment at 6 months, the intervention continued with fewer in-person pharmacist visits to test whether the intervention effect could be sustained safely for 1 year while reducing pharmacist travel time. Final BP and safety outcomes were assessed in both groups at 12 months.
resultsAt baseline, mean systolic BP was 152.4 mm Hg in the intervention group and 154.6 mm Hg in the control group. At 12 months, mean systolic BP fell by 28.6 mm Hg (to 123.8 mm Hg) in the intervention group and by 7.2 mm Hg (to 147.4 mm Hg) in the control group. The mean reduction was 20.8 mm Hg greater in the intervention (95% CI, 13.9-27.7; P<0.0001). A BP <130/80 mm Hg was achieved by 68.0% of the intervention group versus 11.0% of the control group ( P<0.02). These new 12-month efficacy data are statistically indistinguishable from our previously reported 6-month data. No treatment-related serious adverse events occurred in either group over 12 months. Cohort retention at 12 months was 90% in both groups.
conclusionsAmong black male barbershop patrons with uncontrolled hypertension, health promotion by barbers resulted in large and sustained BP reduction over 12 months when coupled with medication management by American Society of Hypertension-certified pharmacists. Broad-scale implementation research is both justified and warranted. CLINICAL
trial registrationURL: https://www.clinicaltrials.gov . Unique identifier: NCT 02321618.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.