Eating Problems Among Adolescent Boys and Girls Before and During the Covid-19 Pandemic

Objective Studies suggest that adolescents reported more eating problems during the pandemic. Using a population-based sample, we compared eating problems—and how they associate with a range of personal characteristics and genetic factors—among adolescents before (June 2017–April 2020) versus during (April 2020–December 2022) the pandemic. Method Based on a preregistered analysis plan, we used cross-sectional data collected from 22,706 14–16-year-olds over 6 years (55% during the pandemic) in the Norwegian Mother, Father, and Child Cohort. We used measurement invariance analyses to compare the level of eating restraint and body concern before and during the pandemic, and multi-group structural equation models to estimate pre-pandemic and pandemic patterns of associations. Results Pandemic responders generally reported more eating problems than pre-pandemic responders, specifically on dieting and body dissatisfaction. However, after adjusting for a general linear increase in eating problems across all 6 years of data collection, the pandemic itself seems to be associated with more eating problems only among girls, reporting more eating restraints (meanΔ = 0.14 [CI: 0.07, 0.20]) and body concern (meanΔ = 0.17 [CI: 0.11, 0.23]). Associations between eating problems and a range of other characteristics did not differ across the pandemic and pre-pandemic groups. Conclusions There was a general increase in eating problems among 14–16-year-olds over time. Adjusting for this trend, the pandemic seems to exacerbate problems among girls. Although the mechanisms are unclear, our results point to factors susceptible to change that could have been intensified during the pandemic (e.g., screen time, mental distress). Our results highlight the importance of recognizing sex-specific differences in eating problems.