Breakfast Skipping Among Dormitory- and Home-Residing High School Students: Insights from the Korea Youth Risk Behavior Survey 2018–2024

Background/Objectives: Skipping breakfast is common among adolescents. Providing breakfast at school is a potential solution; however, its effectiveness remains unclear. This study aimed to compare breakfast skipping between dormitory- and home-residing high school students, analyze trends over time, and identify reasons for skipping breakfast. Methods: This study analyzed data from high school students who participated in the Korea Youth Risk Behavior Survey between 2018 and 2024, and who lived either in dormitories (n = 11,394) or at home (n = 164,446). The frequency of breakfast consumption over the previous seven days was surveyed; breakfast skipping was defined as missing breakfast on at least five of these seven days. Results: Students living in dormitories had more breakfast days than those living at home (4.6 ± 0.04 vs. 3.7 ± 0.01, p < 0.001). The prevalence of breakfast skipping among students living in dormitories was approximately half of that among students living at home. The association between breakfast skipping and residence type remained significant after adjusting for potential confounders (odds ratio: 0.37; 95% confidence interval: 0.34–0.39). The prevalence of breakfast skipping increased more rapidly between 2018 and 2024 among students living in dormitories (15.1–25.0%, annual percent change = 8.7%, p < 0.05) than in those living at home (35.3–45.3%, annual percent change = 4.0%, p < 0.05). In 2022, the main reasons for skipping breakfast among students living in dormitories and at home were oversleeping (32.2%) and lack of time (39.6%), respectively. Conclusions: Students living in dormitories were less likely to skip breakfast than those living at home. However, even when breakfast is provided, a substantial and increasing proportion of adolescents skip breakfast. These findings suggest that creating a supportive environment alone is insufficient and that strategies are needed to enhance awareness of the importance of breakfast.