Kids FIRST: Family-based Intervention to Reduce Snacking and Screen Time in Children

Kids FIRST was a 12-week, four arm, home- and school-based pilot randomised controlled trial to reduce screen-time and unhealthy snacking with assessments at pre- (baseline) and post-intervention. Four UK schools were randomised to control or one of three interventions - Group 1: targeting reductions in screen-time and unhealthy snacking (ST+Sn), Group 2: targeting reductions in screen-time only (ST), Group 3: targeting reductions in unhealthy snacking only (Sn). Intervention group parents received four online 'sessions' and four packages of resources which were tailored to each intervention group and focused on specific mediators of screen-time and/or unhealthy snacking. Children received four 30-minute lessons during school time, followed by homework activities/challenges. Children and parents reported their own screen-time behaviours, children reported their own snacking behaviours, and completed questionnaires on individual, behavioural, social and physical home environmental variables. Descriptive analyses were undertaken using principles of intention to treat.