Sehn Ana P, Gaya Anelise R, Brand Caroline, Dias Arieli F, Kelishadi Roya, Franke Silvia I R, Renner Jane D P, Reuter Cézane P
Graduate Program in Health Promotion, University of Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil.
Graduate Program in Human Movement Sciences, Physical Education, Physiotherapy and Dance School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
J Pediatr Endocrinol Metab. 2020 Nov 16;34(1):51-58. doi: 10.1515/jpem-2020-0399. Print 2021 Jan 27.
The combination of sleep duration, television (TV) time and body mass index (BMI) may be related to the alteration of cardiometabolic risk. However, there are few studies that use these variables grouped, and showing the moderating role of age. This study aimed to verify if the combination of sleep duration, TV time and BMI is associated with cardiometabolic risk and the moderating role of age in this relationship in youth.
Cross-sectional study conducted with 1411 adolescents (611 male), aged 10-17 years. Sleep duration, TV time and BMI were assessed and grouped into eight categories. Cardiometabolic risk was assessed by a continuous metabolic risk score, including the following variables: low HDL-cholesterol, elevated triglycerides, dysglycemia, high systolic blood pressure, high waist circumference and low cardiorespiratory fitness. Generalized linear models were used to test moderation of age in the relationship between the eight categories of sleep duration/television time/BMI with cardiometabolic risk.
Cardiometabolic risk factor showed association with all overweight or obesity independent of sleep time and TV time. Age moderated the relationship between sleep duration/television time/BMI with cardiometabolic risk. This association was stronger in younger adolescents (11 and 13 years), indicating that individuals with inadequate sleep, prolonged TV time and overweight/obesity present higher cardiometabolic risk values when compared to 15-year-old adolescents.
Overweight/obesity, independently of sleep duration and TV time, is the main risk factor for cardiometabolic disorders in adolescence. When moderated by age, younger adolescents that presented the combination of risk factors had higher cardiometabolic risk.
睡眠时间、看电视时间和体重指数（BMI）的组合可能与心脏代谢风险的改变有关。然而，很少有研究将这些变量进行分组，并显示年龄的调节作用。本研究旨在验证睡眠时间、看电视时间和BMI的组合是否与心脏代谢风险相关，以及年龄在青少年这种关系中的调节作用。
对1411名10 - 17岁的青少年（611名男性）进行横断面研究。评估睡眠时间、看电视时间和BMI，并将其分为八类。通过连续代谢风险评分评估心脏代谢风险，该评分包括以下变量：低高密度脂蛋白胆固醇、高甘油三酯、血糖异常、高收缩压、高腰围和低心肺适能。使用广义线性模型来检验年龄在八类睡眠时间/看电视时间/BMI与心脏代谢风险之间关系中的调节作用。
心脏代谢风险因素与所有超重或肥胖情况相关，独立于睡眠时间和看电视时间。年龄调节了睡眠时间/看电视时间/BMI与心脏代谢风险之间的关系。这种关联在较年轻的青少年（11岁和13岁）中更强，表明与15岁的青少年相比，睡眠不足、看电视时间过长以及超重/肥胖的个体具有更高的心脏代谢风险值。
超重/肥胖，独立于睡眠时间和看电视时间，是青少年心脏代谢紊乱的主要风险因素。当受年龄调节时，呈现风险因素组合的较年轻青少年具有更高的心脏代谢风险。
