Socioeconomic status and dietary sodium intake in children from 2008 to 2019 in the UK.

Background: Little is known whether children's sodium intake is affected by the national salt reduction programme in the United Kingdom (UK), particularly in relation to socioeconomic groups. We aimed to assess the trend of sodium intake among children from different socioeconomic backgrounds in the UK, from 2008-2009 to 2018-2019.

Methods: Repeated cross-sectional analyses of data from the National Diet and Nutrition Survey in children aged 4-18 years.