Persistent effect of salt reduction in schoolchildren and their families: 1-year follow-up after an application-based cluster randomized controlled trial.

ABSTRACT:

Background

A 12-month cluster randomized controlled trial (RCT) demonstrated the effectiveness of an application-based education program in reducing the salt intake and systolic blood pressure (SBP) of schoolchildren's adult family members. This study aimed to assess whether the effect at 12 months persisted at 24 months.

Methods

Fifty-four schools were randomly assigned to either the intervention or control group. All participants (594 children in grade 3 and 1188 of their adult family members) who completed the baseline survey were contacted again 12 months after the trial. The primary outcome was the difference in salt intake change between the intervention and control groups at 24 months versus baseline and 12 months, measured by the mean two consecutive 24-h urinary sod

SUBMITTER: Li Y 

PROVIDER: S-EPMC11771009 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature