Research Center in Epidemiology, Biostatistics and Clinical Research, School of Public Health, Université libre de Bruxelles (ULB), Brussels, Belgium.
Service d'Information, Promotion, Education Santé (SIPES), School of Public Health, Université libre de Bruxelles (ULB), Brussels, Belgium.
Eur J Clin Nutr. 2022 Oct;76(10):1403-1408. doi: 10.1038/s41430-022-01117-2. Epub 2022 Mar 24.
BACKGROUND/OBJECTIVES: Although regular breakfast consumption is associated with various health benefits, many adolescents skip this meal, particularly those with shorter sleep durations. In order to better understand the association between sleep duration and breakfast consumption among youth, we analyzed the association between weekday morning tiredness and daily breakfast consumption in adolescents, and explored the mediating role of morning tiredness in the association between sleep duration and daily breakfast consumption on weekdays.
SUBJECTS/METHODS: The "Health Behaviour in School-aged Children" survey conducted in 2018 in French-speaking Belgian schools provided data (n = 8444 11-20-year-old adolescents) on bed- and wake-up times, and on the frequency of breakfast consumption and morning tiredness on weekdays. Multivariable logistic regressions and mediation analyses assessed the association, on weekdays, of morning tiredness (≥4 school mornings a week vs. less) and sleep duration (hours), with daily breakfast consumption, and the mediating role of morning tiredness.
Feeling tired ≥4 school mornings a week was associated with lower odds of daily breakfast consumption on weekdays (aOR = 0.77 (95% CI 0.69-0.86)). In turn, on weekdays, sleep duration was positively associated with daily breakfast consumption (aOR = 1.29 (95% CI 1.23-1.36)), even after adjustment for morning tiredness (aOR = 1.28 (95% CI 1.21-1.35)). Morning tiredness only explained 4.9% of the association between sleep duration and daily breakfast consumption.
Our findings suggest that in adolescents, sleep duration and morning tiredness are independent correlates of daily breakfast consumption on weekdays.
背景/目的：尽管经常吃早餐与许多健康益处有关，但许多青少年不吃早餐，尤其是那些睡眠时间较短的青少年。为了更好地了解青少年睡眠时间与早餐摄入之间的关系，我们分析了青少年工作日早晨疲劳与日常早餐摄入之间的关系，并探讨了睡眠持续时间与工作日日常早餐摄入之间的关联中，早晨疲劳的中介作用。
研究对象/方法：2018 年在法语比利时学校进行的“学龄儿童健康行为”调查提供了数据（n=8444 名 11-20 岁的青少年），包括睡眠时间和起床时间，以及工作日早餐摄入和早晨疲劳的频率。多变量逻辑回归和中介分析评估了工作日早晨疲劳（≥4 个上学日/周与<4 个上学日/周）和睡眠时间（小时）与每日早餐摄入的关联，以及早晨疲劳的中介作用。
每周≥4 个上学日感到疲劳与工作日每日早餐摄入的几率较低相关（aOR=0.77（95%CI 0.69-0.86））。反过来，在工作日，睡眠时间与每日早餐摄入呈正相关（aOR=1.29（95%CI 1.23-1.36）），即使在调整了早晨疲劳后也是如此（aOR=1.28（95%CI 1.21-1.35））。早晨疲劳仅解释了睡眠持续时间与每日早餐摄入之间关联的 4.9%。
我们的研究结果表明，在青少年中，睡眠时间和早晨疲劳是工作日每日早餐摄入的独立相关因素。
