Key result
DASH diet lowers systolic BP ~7 mm Hg versus usual care and other nonpharmacologic interventions.
Why the study?
Although nonpharmacologic lifestyle interventions can lower blood pressure, it remained unclear which intervention is the most efficacious.
Do nonpharmacologic interventions reduce blood pressure in adults with prehypertension to established hypertension?
Meta-Analysis (n=14,923)
Do nonpharmacologic interventions reduce blood pressure in adults with prehypertension to established hypertension?
Effect estimate: WMD 6.97 mm Hg (95% CI 4.50-9.47)
The DASH diet is the most effective nonpharmacologic intervention for lowering blood pressure in adults with prehypertension to established hypertension.
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Supports DASH as first-line nonpharmacologic therapy for hypertension; confirms superiority over alternatives in Level 1 evidence synthesis.
Fu et al. (2020) conducted a meta-analysis in Prehypertension to established hypertension (n=14,923). Dietary Approach to Stop Hypertension (DASH) vs. Usual care and other nonpharmacologic interventions was evaluated on Lowering systolic BP (WMD 6.97 mm Hg, 95% CI 4.50-9.47). The Dietary Approach to Stop Hypertension (DASH) was superior to usual care and all other nonpharmacologic interventions in lowering systolic BP (WMD 6.97 mm Hg; 95% CrI 4.50-9.47).
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