Key result
Brief interventions including an information booklet did not reduce diastolic blood pressure during watchful waiting (mean difference 0.2; 95% CI 1.6 to 2.0).
Why the study?
Do brief dietary interventions reduce blood pressure in patients with a single high blood pressure reading in primary care?
Population
296 patients with a single high blood pressure reading (> 160/90 mm Hg) in primary care
Comparison
Brief dietary interventions including an… vs Standard brief advice and monitoring
Design
RCT, randomised to eight groups defined by three factors
Follow-up
up to 6 months
Authors
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Brief interventions do not lower BP during watchful waiting; challenges their efficacy and supports standard care without added prompts in primary care hypertension.
RCT (n=296)
Factorial
Do brief dietary interventions reduce blood pressure in patients with a single high blood pressure reading in primary care?
Mean Difference: 0.2 (95% CI 1.6–2)
Brief dietary interventions, including booklets and lifestyle prompts, do not significantly reduce blood pressure during the watchful waiting period for hypertension, though they may improve diet and weight.
Little et al. (2004) conducted an RCT in Hypertension (n=296). Brief interventions (information booklet, low sodium salt, lifestyle prompts) vs. Control was evaluated on Blood pressure (MD 0.2, 95% CI 1.6 to 2.0). Brief interventions including an information booklet did not reduce diastolic blood pressure during watchful waiting (mean difference 0.2; 95% CI 1.6 to 2.0).
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