Researchers analyzed adolescents with increased blood pressure (BP) in this randomized control trial to determine how BP and endothelial function in this group of patients could be impacted by a 6-month dietary approaches to stop hypertension (DASH)-focused behavioral nutrition intervention, started in clinic with subsequent telephone and mail contact. The impacts were evaluated post-intervention and at 18-month follow-up. Participants were 159 adolescents 11 to 18 years of age with newly diagnosed high BP or stage 1 hypertension managed at a hospital-based clinic. Alterations in BP, change in brachial artery flow-mediated dilation, and alteration in DASH score based on 3-day diet recalls were assessed as the outcomes. Findings demonstrated a greater effectiveness of the DASH intervention in initial systolic BP improvement as well as longer term improvement in endothelial function and diet quality, compared with routine care, in adolescents with high BP and hypertension.
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