Key result
Clinic-based salt reduction campaign linked to a ~19% decrease in estimated daily salt intake among outpatients.
Why the study?
Excessive salt intake is a risk factor for noncommunicable diseases such as hypertension, making initiatives to reduce intake essential.
Does a community clinic-based salt reduction campaign reduce estimated salt intake and blood pressure in outpatients?
Observational (n=655)
No
Does a community clinic-based salt reduction campaign reduce estimated salt intake and blood pressure in outpatients?
Absolute Event Rate: 9.4% vs 11.6%
p-value: p=<0.001
A simple community clinic-based salt reduction campaign significantly reduced estimated salt intake, body weight, and systolic blood pressure in outpatients.
Suggests community-level campaigns may effectively lower patient sodium intake; leaves open whether.
Background: Excessive sodium chloride (salt) intake is a risk factor for noncommunicable diseases, such as hypertension, and initiatives to reduce salt intake are essential. This study assessed whether a salt reduction campaign reduced salt intake in outpatients attending a community clinic. Methods: Of 2,429 outpatients whose baseline estimated salt intake was measured using spot urine during the campaign conducted from February 1 to June 30, 2018, 655 outpatients (42.4% female, mean age of 61.6 ± 13.1 years) with a baseline salt intake of ≥10 g/day and ≥2 salt intake measurements within six months of the campaign were included. During the campaign, healthcare providers displayed information on low-salt foods and a poster depicting the association between excess salt intake and hypertension, and encouraged outpatients to measure their salt intake. The primary outcome was the change in salt intake. Results: Salt intake decreased from 11.6 ± 1.69 to 9.4 ± 2.44 g/day (p < 0.001), body mass index (BMI) decreased from 27.4 ± 5.0 to 27.2 ± 5.0 kg/m² (p < 0.001), and systolic blood pressure (SBP) decreased from 132.3 ± 13.0 to 131.1 ± 13.5 mmHg (p = 0.028) in this population. Correlation analysis of the factors associated with changes in salt intake identified changes in BMI (r = 0.192, p < 0.001) and SBP (r = 0.176, p < 0.001). Estimated glomerular filtration rate decreased slightly; however, no clinically significant renal events were identified. Conclusion: This simple campaign represents a practical strategy to reduce salt intake in routine clinical practice.
No takes yet. Share an insight, caveat, or question.
Sunagawa et al. (2026) conducted an observational in High salt intake (n=655). Clinic-based salt reduction campaign vs. Pre-campaign baseline was evaluated on Change in estimated salt intake (g/day) (p=<0.001). A clinic-based salt reduction campaign significantly reduced estimated daily salt intake from 11.6 g/day to 9.4 g/day among outpatients.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: