DASH Diet and Blood Pressure Among Black Americans With and Without CKD: The Jackson Heart Study.
Am J Hypertens
; 32(10): 975-982, 2019 09 24.
Article
em En
| MEDLINE
| ID: mdl-31187128
ABSTRACT
BACKGROUND:
The Dietary Approaches to Stop Hypertension (DASH) diet lowers blood pressure (BP) more effectively in blacks compared to other US racial subgroups. Considering chronic kidney disease (CKD) raises BP through complex mechanisms, DASH may affect BP differently among blacks with and without CKD. We compared the association of DASH accordance to BP and prevalent hypertension among blacks with and without CKD.METHODS:
Our study involved 3,135 black Americans enrolled in the Jackson Heart Study (2000-2004) with diet and office BP data. Using linear models adjusted for demographics, health behaviors, and clinical factors, we determined the association of a modified DASH score (excluding sodium intake, ranging from 0 to 8 with increasing DASH accordance) with BP. We performed tests for interaction between DASH score and CKD status.RESULTS:
Among participants (mean age 55 years; hypertension 60%; CKD 19%), the median DASH score was similar among participants with and without CKD (1.0 [interquartile range (IQR) 0.5-2] and 1.0 [IQR 0.5-1.5]). CKD status modified the association of the DASH score with systolic BP (SBP) and diastolic BP (DBP; P interactions were 0.06 and <0.01). Among participants without CKD, SBP and DBP were not associated with the DASH score (-0.4 [95% confidence interval -1.0, 0.1] mm Hg and -0.1 [-0.4, 0.2] mm Hg per one unit higher DASH score). Among participants with CKD, one unit higher DASH score was associated with lower SBP by 1.6 (0.5, 2.6) mm Hg and lower DBP by 0.9 (0.3, 1.5) mm Hg.CONCLUSIONS:
Despite low DASH scores overall, better DASH accordance was associated with lower BP among Black Americans with CKD.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Negro ou Afro-Americano
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Pressão Sanguínea
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Insuficiência Renal Crônica
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Abordagens Dietéticas para Conter a Hipertensão
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Hipertensão
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Rim
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Am J Hypertens
Assunto da revista:
ANGIOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos