Alvarez Cristian, Paredes-Arévalos Lorena, Obando Isabel, Leal Marlys, Avila Yennifer, Sadarangani Kabir P, Delgado-Floody Pedro, Alonso-Martínez Alicia M, Izquierdo Mikel
Laboratory of Human Performance, Quality of Life and Wellness Research Group, Department of Physical Activity Sciences, Universidad de Los Lagos, 5290000 Osorno, Chile.
Career of Nursing, Department of Health, Universidad de Los Lagos, 5290000 Osorno, Chile.
Children (Basel). 2020 Dec 25;8(1):8. doi: 10.3390/children8010008.
Reduced sleep duration in schoolchildren has been associated with poor health outcomes at the scholar level; however, there is little information on the effects of sleep loss on Chilean preschoolers. The aim of this study was to describe and compare cardiometabolic outcomes according with the sleep duration in Chilean preschoolers. A second aim was to identify potential risk outcomes (i.e., in odds ratios) for suffering anthropometric and body composition alterations related with participants' sleep duration. A total of 99 ( = 54 boys; = 45 girls) preschoolers (mean age (95% CI) 3.1 (2.7, 3.4 years), mean weight 16.1 (15.5, 16.6 kg)) were included in this study. Sleep duration was assessed using standardized questionnaires with the parents. Socio-demographic parents' information, as well as anthropometric, nutritional, and handgrip strength outcomes in preschoolers were distributed by tertiles (T1; < 10 h, T2; 10 to < 11 h, and T3; ≥ 11 h) of sleep time. Children in the lowest tertile of sleep duration had significantly higher body mass indices ( = 0.036), weight-for-height Z-scores ( < 0.0001), waist-hip ratios ( = 0.041), and body fat in percent ( = 0.035) and kg ( = 0.044) compared to those in the top tertile. Low sleep duration was associated with significantly greater risks of overweight/obesity (OR 1.3 (0.9, 1.8)), low height (OR 1.2 (0.8, 1.6)), and increased BMI (OR 1.5 (0.4, 1.4)), but not with reductions in grip strength. Chilean preschoolers with low sleep duration showed higher cardiometabolic markers (anthropometric/body composition) and were more likely to be classified as obese than youth with longer sleep duration.
学龄儿童睡眠时间缩短与学业水平上的健康状况不佳有关；然而，关于睡眠不足对智利学龄前儿童的影响，相关信息却很少。本研究的目的是根据智利学龄前儿童的睡眠时间来描述和比较心脏代谢指标。第二个目的是确定与参与者睡眠时间相关的人体测量和身体成分改变的潜在风险结果（即优势比）。本研究共纳入了99名学龄前儿童（54名男孩，45名女孩）（平均年龄（95%置信区间）3.1（2.7，3.4岁），平均体重16.1（15.5，16.6千克））。通过与家长使用标准化问卷来评估睡眠时间。将学龄前儿童的社会人口统计学家长信息以及人体测量、营养和握力指标按睡眠时间三分位数（T1；<10小时，T2；10至<11小时，T3；≥11小时）进行分类。与睡眠时间最长三分位数的儿童相比，睡眠时间最短三分位数的儿童的体重指数（P = 0.036）、身高别体重Z评分（P < 0.0001）、腰臀比（P = 0.041）以及体脂百分比（P = 0.035）和体脂千克数（P = 0.044）均显著更高。睡眠时间短与超重/肥胖（优势比1.3（0.9，1.8））、身高偏低（优势比1.2（0.8，1.6））以及体重指数增加（优势比1.5（0.4，1.4））的风险显著增加相关，但与握力下降无关。睡眠时间短的智利学龄前儿童表现出更高的心脏代谢指标（人体测量/身体成分），并且比睡眠时间长的儿童更有可能被归类为肥胖。
