VU University Medical Center, EMGO Institute for Health and Care Research, Department of Public and Occupational Health, Amsterdam, The Netherlands.
PLoS One. 2012;7(12):e53333. doi: 10.1371/journal.pone.0053333. Epub 2012 Dec 28.
It is not clear whether the association between sedentary time and cardiometabolic risk exists among obese adolescents. We examined the association between screen time (TV and computer time) and cardiometabolic risk in obese Dutch adolescents.
For the current cross-sectional study, baseline data of 125 Dutch overweight and obese adolescents (12-18 years) participating in the Go4it study were included. Self-reported screen time (Activity Questionnaire for Adolescents and Adults) and clustered and individual cardiometabolic risk (i.e. body composition, systolic and diastolic blood pressure, low-density (LDL-C), high-density (HDL-C) and total cholesterol (TC), triglycerides, glucose and insulin) were assessed in all participants. Multiple linear regression analyses were used to assess the association between screen time and cardiometabolic risk, adjusting for age, gender, pubertal stage, ethnicity and moderate-to-vigorous physical activity. We found no significant relationship between self-reported total screen time and clustered cardiometabolic risk or individual risk factors in overweight and obese adolescents. Unexpectedly, self-reported computer time, but not TV time, was slightly but significantly inversely associated with TC (B = -0.002; CI = [-0.003;-0.000]) and LDL-C (B = -0.002; CI = [-0.001;0.000]).
In obese adolescents we could not confirm the hypothesised positive association between screen time and cardiometabolic risk. Future studies should consider computer use as a separate class of screen behaviour, thereby also discriminating between active video gaming and other computer activities.
目前尚不清楚久坐时间与肥胖青少年的心血管代谢风险之间是否存在关联。我们研究了荷兰肥胖青少年中屏幕时间（电视和电脑时间）与心血管代谢风险之间的关系。
在目前的这项横断面研究中，纳入了参加 Go4it 研究的 125 名荷兰超重和肥胖青少年（12-18 岁）的基线数据。所有参与者均自我报告了屏幕时间（青少年和成人活动问卷）以及聚集的和个体的心血管代谢风险（即身体成分、收缩压和舒张压、低密度脂蛋白胆固醇（LDL-C）、高密度脂蛋白胆固醇（HDL-C）和总胆固醇（TC）、甘油三酯、葡萄糖和胰岛素）。使用多元线性回归分析来评估屏幕时间与心血管代谢风险之间的关系，调整了年龄、性别、青春期阶段、种族和中等至剧烈体力活动。我们发现超重和肥胖青少年中自我报告的总屏幕时间与聚集的心血管代谢风险或个体风险因素之间没有显著的关系。出乎意料的是，自我报告的电脑时间，而不是电视时间，与 TC（B = -0.002；CI = [-0.003；-0.000]）和 LDL-C（B = -0.002；CI = [-0.001；0.000]）呈轻微但显著的负相关。
在肥胖青少年中，我们不能证实屏幕时间与心血管代谢风险之间存在假设的正相关关系。未来的研究应将计算机使用视为屏幕行为的一个单独类别，从而区分主动视频游戏和其他计算机活动。
