Hypertension Research Today is a free monthly online journal that collates and summarizes the latest research about Hypertension, including details on symptoms, diagnosis, diet, treatment, causes. | ||||||||
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The efficacy of a clinic-based behavioral nutrition intervention emphasizing a DASH-type diet for adolescents with elevated blood pressure.Couch SC, Saelens BE, Levin L, Dart K, Falciglia G, Daniels SR Department of Nutritional Sciences, University of Cincinnati, Cincinnati, OH 45267-0394, USA. couchsc@email.uc.edu OBJECTIVE: To examine the efficacy of a 3-month clinic-based behavioral nutrition intervention emphasizing a diet high in fruits, vegetables, and low fat dairy (DASH intervention) versus routine outpatient hospital-based nutrition care (RC) on diet and blood pressure (BP) in adolescents with elevated BP. STUDY DESIGN: Fifty-seven adolescents with a clinical diagnosis of prehypertension or hypertension (systolic BP or diastolic BP, 90(th) to 99(th) percentile) were randomly assigned to DASH or RC. SBP, DBP, 3-day diet recall, weight, and height were assessed at pretreatment, post-treatment, and 3 months later (follow-up). RESULTS: In completer analysis, DASH versus RC had a greater decrease in SBP z scores from baseline to post-treatment (P < 0.01) and a trend for a greater decrease in SBP z scores from baseline through follow-up (P = .07). DBP z scores changed similarly for conditions from baseline through follow-up. Relative to RC, DASH had a greater increase in intake of fruits (P < .001), potassium and magnesium (P < .01), and a greater decrease in total fat (P < .05) from baseline to post-treatment. From baseline through follow-up, DASH versus RC had a greater increase in low fat dairy (P < .001). CONCLUSIONS: The DASH intervention proved more effective than RC in improving SBP and diet quality in adolescents with elevated BP. Published 18 March 2008 in J Pediatr, 152(4): 494-501.
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