Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension

IntroductionAmerican Indian and Alaska Native (AI/AN) adults experience disproportionate cardiovascular disease (CVD) morbidity and mortality compared to other races, which may be partly attributable to higher burden of hypertension (HTN). Dietary Approaches to Stop Hypertension (DASH) is a high-imp...

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Main Authors: Ka’imi Sinclair, Cassandra J. Nguyen, Marianna S. Wetherill, Katie Nelson, Alexandra M. Jackson, Tori Taniguchi, Valarie Blue Bird Jernigan, Dedra Buchwald
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2023.1117824/full
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author Ka’imi Sinclair
Cassandra J. Nguyen
Marianna S. Wetherill
Katie Nelson
Alexandra M. Jackson
Tori Taniguchi
Valarie Blue Bird Jernigan
Dedra Buchwald
author_facet Ka’imi Sinclair
Cassandra J. Nguyen
Marianna S. Wetherill
Katie Nelson
Alexandra M. Jackson
Tori Taniguchi
Valarie Blue Bird Jernigan
Dedra Buchwald
author_sort Ka’imi Sinclair
collection DOAJ
description IntroductionAmerican Indian and Alaska Native (AI/AN) adults experience disproportionate cardiovascular disease (CVD) morbidity and mortality compared to other races, which may be partly attributable to higher burden of hypertension (HTN). Dietary Approaches to Stop Hypertension (DASH) is a high-impact therapeutic dietary intervention for primary and secondary prevention of CVD that can contribute to significant decreases in systolic blood pressure (BP). However, DASH-based interventions have not been tested with AI/AN adults, and unique social determinants of health warrant independent trials. This study will assess the effectiveness of a DASH-based intervention, called Native Opportunities to Stop Hypertension (NOSH), on systolic BP among AI/AN adults in three urban clinics.MethodsNOSH is a randomized controlled trial to test the effectiveness of an adapted DASH intervention compared to a control condition. Participants will be aged ≥18 years old, self-identify as AI/AN, have physician-diagnosed HTN, and have elevated systolic BP (≥ 130 mmHg). The intervention includes eight weekly, tailored telenutrition counseling sessions with a registered dietitian on DASH eating goals. Intervention participants will be provided $30 weekly and will be encouraged to purchase DASH-aligned foods. Participants in the control group will receive printed educational materials with general information about a low-sodium diet and eight weekly $30 grocery orders. All participants will complete assessments at baseline, after the 8-week intervention, and again 12 weeks post-baseline. A sub-sample of intervention participants will complete an extended support pilot study with assessments at 6- and 9-months post-baseline. The primary outcome is systolic BP. Secondary outcomes include modifiable CVD risk factors, heart disease and stroke risk scores, and dietary intake.DiscussionNOSH is among the first randomized controlled trials to test the impact of a diet-based intervention on HTN among urban AI/AN adults. If effective, NOSH has the potential to inform clinical strategies to reduce BP among AI/AN adults.Clinical trials registrationhttps://clinicaltrials.gov/ct2/show/NCT02796313, Identifier NCT02796313.
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spelling doaj.art-b969c602107348d69aad16a49049a9742023-06-02T05:15:25ZengFrontiers Media S.A.Frontiers in Public Health2296-25652023-06-011110.3389/fpubh.2023.11178241117824Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertensionKa’imi Sinclair0Cassandra J. Nguyen1Marianna S. Wetherill2Katie Nelson3Alexandra M. Jackson4Tori Taniguchi5Valarie Blue Bird Jernigan6Dedra Buchwald7Institute for Research and Education to Advance Community Health, Washington State University, Seattle, WA, United StatesNutrition Department at University of California, Davis, Davis, CA, United StatesDepartment of Health Promotion Sciences, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Tulsa, OK, United StatesInstitute for Research and Education to Advance Community Health, Washington State University, Seattle, WA, United StatesPublic Health Department, Pacific University, Forest Grove, OR, United StatesCenter for Indigenous Health Research and Policy, Center for Health Sciences, Oklahoma State University, Tulsa, OK, United StatesCenter for Indigenous Health Research and Policy, Center for Health Sciences, Oklahoma State University, Tulsa, OK, United StatesInstitute for Research and Education to Advance Community Health, Washington State University, Seattle, WA, United StatesIntroductionAmerican Indian and Alaska Native (AI/AN) adults experience disproportionate cardiovascular disease (CVD) morbidity and mortality compared to other races, which may be partly attributable to higher burden of hypertension (HTN). Dietary Approaches to Stop Hypertension (DASH) is a high-impact therapeutic dietary intervention for primary and secondary prevention of CVD that can contribute to significant decreases in systolic blood pressure (BP). However, DASH-based interventions have not been tested with AI/AN adults, and unique social determinants of health warrant independent trials. This study will assess the effectiveness of a DASH-based intervention, called Native Opportunities to Stop Hypertension (NOSH), on systolic BP among AI/AN adults in three urban clinics.MethodsNOSH is a randomized controlled trial to test the effectiveness of an adapted DASH intervention compared to a control condition. Participants will be aged ≥18 years old, self-identify as AI/AN, have physician-diagnosed HTN, and have elevated systolic BP (≥ 130 mmHg). The intervention includes eight weekly, tailored telenutrition counseling sessions with a registered dietitian on DASH eating goals. Intervention participants will be provided $30 weekly and will be encouraged to purchase DASH-aligned foods. Participants in the control group will receive printed educational materials with general information about a low-sodium diet and eight weekly $30 grocery orders. All participants will complete assessments at baseline, after the 8-week intervention, and again 12 weeks post-baseline. A sub-sample of intervention participants will complete an extended support pilot study with assessments at 6- and 9-months post-baseline. The primary outcome is systolic BP. Secondary outcomes include modifiable CVD risk factors, heart disease and stroke risk scores, and dietary intake.DiscussionNOSH is among the first randomized controlled trials to test the impact of a diet-based intervention on HTN among urban AI/AN adults. If effective, NOSH has the potential to inform clinical strategies to reduce BP among AI/AN adults.Clinical trials registrationhttps://clinicaltrials.gov/ct2/show/NCT02796313, Identifier NCT02796313.https://www.frontiersin.org/articles/10.3389/fpubh.2023.1117824/fullAmerican Indian/Alaska Nativedietary approach to stop hypertensioncardiovascular diseaseblood pressurehealth disparitiesurban health
spellingShingle Ka’imi Sinclair
Cassandra J. Nguyen
Marianna S. Wetherill
Katie Nelson
Alexandra M. Jackson
Tori Taniguchi
Valarie Blue Bird Jernigan
Dedra Buchwald
Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension
Frontiers in Public Health
American Indian/Alaska Native
dietary approach to stop hypertension
cardiovascular disease
blood pressure
health disparities
urban health
title Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension
title_full Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension
title_fullStr Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension
title_full_unstemmed Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension
title_short Native opportunities to stop hypertension: study protocol for a randomized controlled trial among urban American Indian and Alaska Native adults with hypertension
title_sort native opportunities to stop hypertension study protocol for a randomized controlled trial among urban american indian and alaska native adults with hypertension
topic American Indian/Alaska Native
dietary approach to stop hypertension
cardiovascular disease
blood pressure
health disparities
urban health
url https://www.frontiersin.org/articles/10.3389/fpubh.2023.1117824/full
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