Roberto Denise Miguel Teixeira, Pereira Luciana Jeremias, Vieira Francilene Gracieli Kunradi, Di Pietro Patricia Faria, de Assis Maria Alice Altenburg, Hinnig Patrícia de Fragas
Post-Graduation Program in Nutrition, Health Sciences Center, Federal University of Santa Catarina, Florianópolis 88040-900, Brazil.
Int J Environ Res Public Health. 2023 Sep 21;20(18):6791. doi: 10.3390/ijerph20186791.
Sleep timing is one of the dimensions of sleep that refers to the time of day when sleep occurs. It has been included in sleep-related research because of the potential associations between being overweight and the consumption of meals and snacks. This cross-sectional study aimed to investigate associations between sleep timing, meal and snack consumption and weight status in 1333 schoolchildren aged 7-14 years. The midpoint of sleep was used as a sleep timing measure obtained by the midpoint between bedtime and wake-up time, classified as Early, Intermediate, and Late. Schoolchildren in the Early group were less likely to be overweight (OR: 0.83, 95% CI 0.69; 0.99), and had higher odds of mid-morning snack consumption (OR: 1.95, 95% CI 1.56; 2.44) and lower probability to consume an evening snack (OR: 0.75, 95% CI 0.59; 0.94) compared with the Intermediate group. The Late group had lower odds of mid-morning snack consumption (OR: 0.67, 95% CI 0.55, 0.80) than the Intermediate group. The consumption of mid-morning and evening snacks was associated with the Early and Late midpoints of sleep. These results suggest that bedtime and wake-up time are relevant to consuming meals and snacks and may also be related to a greater probability of being overweight in children and adolescents.
睡眠时间是睡眠的一个维度，指的是一天中发生睡眠的时间。由于超重与进餐和吃零食之间可能存在关联，它已被纳入与睡眠相关的研究中。这项横断面研究旨在调查1333名7至14岁学童的睡眠时间、进餐和吃零食情况与体重状况之间的关联。睡眠中点被用作睡眠时间的衡量指标，通过就寝时间和起床时间之间的中点获得，并分为早、中、晚三类。与中间组相比，早期组的学童超重的可能性较小（比值比：0.83，95%置信区间0.69；0.99），上午吃零食的几率较高（比值比：1.95，95%置信区间1.56；2.44），晚上吃零食的概率较低（比值比：0.75，95%置信区间0.59；0.94）。晚期组上午吃零食的几率（比值比：0.67，95%置信区间0.55，0.80）低于中间组。上午和晚上吃零食与睡眠的早期和晚期中点有关。这些结果表明，就寝时间和起床时间与进餐和吃零食有关，也可能与儿童和青少年超重的可能性更大有关。
