Yang Wei, Zhuang Zhao, Huang Pengxiang, Zhang Man, Wang Kebo, Jiang Ying, Zhou Han, Yu Lianlong
Shandong Provincial Third Hospital, Jinan, Shandong, China.
Qingdao Central Hospital, Qingdao, Shandong, China.
Front Nutr. 2024 Jan 17;11:1310155. doi: 10.3389/fnut.2024.1310155. eCollection 2024.
In recent years, the relationship between circadian rhythm and overweight and obesity has attracted the attention of many scholars.
To evaluate association between the duration of sleep and the regularity of breakfast and overweight. A total of 1,178 students from Qingdao University were selected by stratified cluster sampling. There were 601 males (24.69 ± 0.80 years old) and 569 females (24.54 ± 0.70 years old). We used body mass index (BMI), waist circumference (WC), and waist-to-hip ratio (WHR) to define overweight levels. Chi-square test, Pearson correlation test, and logistic regression were applied to test association among overweight, sleep duration, sleep onset time, and breakfast regularity. Pittsburgh sleep quality index was used to assess the overall sleep quality of the study subjects. Mediation effect and Sobel test were used to analyze the effect of sleep duration on breakfast regularity and overweight.
Only 34.1% of the population ate breakfast every day, and eating breakfast 1-3 times per week was associated with a higher risk of overweight (BMI: OR = 2.183, 95%CI: 1.369,3,481; WC: OR = 2.101, 95%CI: 1.232,3,583; WHR: OR = 2.108, 95%CI: 1.331,3,337). The effects of all types of Usual Breakfast Consumption Frequency on overweight were fully mediated by sleep duration ( < 0.05). In particular, the subjects exercised outdoors more than five times per week slept longer ( < 0.05).
Short sleep duration may be the main reason for irregular breakfast leading to overweight. Adequate outdoor exercise is essential for weight maintenance.
近年来，昼夜节律与超重和肥胖之间的关系引起了众多学者的关注。
为评估睡眠时间和早餐规律与超重之间的关联。采用分层整群抽样法选取了青岛大学的1178名学生。其中男性601名（24.69±0.80岁），女性569名（24.54±0.70岁）。我们使用体重指数（BMI）、腰围（WC）和腰臀比（WHR）来定义超重水平。应用卡方检验、Pearson相关检验和逻辑回归来检验超重、睡眠时间、入睡时间和早餐规律之间的关联。采用匹兹堡睡眠质量指数评估研究对象的整体睡眠质量。采用中介效应和Sobel检验分析睡眠时间对早餐规律和超重的影响。
只有34.1%的人群每天吃早餐，每周吃1 - 3次早餐与超重风险较高相关（BMI：OR = 2.183，95%CI：1.369，3.481；WC：OR = 2.101，95%CI：1.232，3.583；WHR：OR = 2.108，95%CI：1.331，3.337）。各类通常早餐消费频率对超重的影响均完全由睡眠时间介导（<0.05）。特别是，每周在户外锻炼超过五次的受试者睡眠时间更长（<0.05）。
睡眠时间短可能是早餐不规律导致超重的主要原因。充足的户外运动对维持体重至关重要。
