Effect of salt reduction on iodine status assessed by 24 hour urinary iodine excretion in children and their families in northern China: a substudy of a cluster randomised controlled trial.

ABSTRACT:

Objective

To study the effect of salt reduction on iodine status and to determine whether iodine consumption was still adequate after salt reduction in a population where universal salt iodisation is mandatory.

Design

A substudy of a cluster randomised controlled trial, with schools randomly assigned to either the intervention or the control group.

Setting

28 primary schools in Changzhi, northern China.

Participants

279 children in grade 5 of primary school (mean age: 10.1); 553 adults (age: 43.8).

Intervention

Children were educated about the harmful effects of salt and how to reduce salt intake using the schools' usual health education lessons. Children then delivered the message to their families. The duration was 1 school term (≈3.5 months).

Main

SUBMITTER: He FJ 

PROVIDER: S-EPMC5051323 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature