Program in Public Health, Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA.
Department of Biobehavioral Health, College of Health and Human Development, The Pennsylvania State University, University Park, PA 16802, USA.
Nutrients. 2021 Dec 23;14(1):31. doi: 10.3390/nu14010031.
Caffeine consumption has been linked to poor sleep health in adolescents, but it is unknown whether poor sleep predicts caffeine consumption, and/or whether caffeine consumption predicts poor sleep, particularly when sleep is measured objectively. Data were collected from a micro-longitudinal sub-study of the age 15 wave of the Fragile Families and Child Wellbeing Study ( = 589). Adolescents wore an actigraphy device and completed daily surveys for ~1 week. Daily surveys assessed subjective sleep quality and caffeinated beverage consumption (0 = no caffeine, 1 = any caffeine). Separate mixed models assessed whether actigraphy-measured sleep duration, timing, maintenance efficiency, and subjective quality predicted next-day caffeinated beverage consumption within and between adolescents. Variability (standard deviation) of sleep duration and timing, sleep regularity index, and social jetlag were tested as additional between-person predictors. Lagged models tested whether daily caffeinated beverage consumption predicted sleep that night ( = 458). Adolescents with more variable sleep duration and midpoint had higher average odds of consuming caffeinated beverages compared to others. After adolescents consumed ≥1 caffeinated beverage, they had later sleep onset that night and wake time the next morning than usual versus when they did not consume caffeine. Curbing caffeinated beverage consumption may aid in the maintenance of regular sleep schedules and advance sleep timing in adolescents.
咖啡因摄入与青少年睡眠健康状况不佳有关，但目前尚不清楚睡眠不佳是否预示着咖啡因摄入，以及/或者咖啡因摄入是否预示着睡眠不佳，尤其是当睡眠是通过客观手段测量时。这项数据来自脆弱家庭和儿童福利研究（Fragile Families and Child Wellbeing Study）15 岁波次的微观纵向子研究（n = 589）。青少年佩戴了活动记录仪，并连续大约一周每天完成问卷调查。每日调查评估了主观睡眠质量和含咖啡因饮料的摄入情况（0 = 不含咖啡因，1 = 含咖啡因）。分别使用混合模型评估了活动记录仪测量的睡眠时长、时间、维持效率和主观质量是否能预测青少年内和青少年间次日含咖啡因饮料的摄入。还测试了睡眠时长和时间、睡眠规律指数和社会时差的可变性（标准差），作为额外的个体间预测因素。滞后模型测试了每日含咖啡因饮料的摄入是否能预测当晚的睡眠（n = 458）。与其他人相比，睡眠时长和中点变化较大的青少年更有可能摄入含咖啡因的饮料。青少年一旦摄入了≥1 杯含咖啡因的饮料，他们当晚的入睡时间和第二天早上的醒来时间就会比平时晚，而不是在不摄入咖啡因的情况下。控制含咖啡因饮料的摄入可能有助于维持规律的睡眠时间并提前青少年的睡眠时间。
