Association between smartphone screen time and fast food intake among adolescents: a cross-sectional survey.

ABSTRACT:

Objective

Despite growing concerns regarding the impact of smartphone use on adolescents' lifestyle, there is a notable lack of studies utilising national data to explore how smartphone use influences eating habits in this age group. We aimed to investigate the association between smartphone screen time and fast food intake using representative data from Korean adolescents.

Design

Cross-sectional survey.

Setting

This cross-sectional analysis used data from the 2017 Korean Youth Risk Behavior Web-based Survey (KYRBS). We used Poisson regression to directly estimate prevalence ratios (PRs) rather than using logistic regression as odds ratios (ORs) tend to overestimate PRs when the outcome is common. Smartphone screen time was categorised into four groups based on the da

SUBMITTER: Kim DB 

PROVIDER: S-EPMC12519711 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature