Type-Specific Screen Time Associations with Cardiovascular Risk Markers in Children
Type-Specific Screen Time Associations with Cardiovascular Risk Markers in Children
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DOI：
10.1016/j.amepre.2013.01.020
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发表时间：
2013-05-01
影响因子：
5.5
通讯作者：
Padez, Cristina
中科院分区：
文献类型：
--
作者：
Stamatakis, Emmanuel;Coombs, Ngaire;Padez, Cristina
背景资料：有证据表明，看电视的时间可能比其他类型的屏幕时间与心血管风险标志物有更强的关联，但大多数研究都集中在看电视，或总屏幕时间。目的：检查学龄儿童屏幕时间类型与心血管风险标志物之间的关联。对葡萄牙2 515名学龄儿童（年龄2-12岁，2009年和2010年收集的数据）进行的横断面研究。通过问卷调查收集了三种类型的屏幕时间（电视，电子游戏和PC时间），并由训练有素的现场工作人员收集了三种心血管风险标志物（静息心率，舒张压[DBP]和收缩压[SBP]）的数据。对筛选时间预测因子和心血管风险结果的每种组合以及聚类心血管风险评分运行复杂样本广义线性模型，调整潜在混杂因素（包括体力活动）。结果：调整所有协变量后，看电视时间（而非电脑或电子游戏时间）与聚集性心血管风险评分、DBP和SBP呈正相关。每天看电视超过2小时（与
Background: There is evidence that TV time may have stronger associations with cardiovascular risk markers than other types of screen time, but most studies focus on TV, or total screen time.Purpose: To examine associations between types of screen time and cardiovascular risk markers in school-age children.Methods: Cross-sectional study of 2515 school children in Portugal (aged 2-12 years, data collected in 2009 and 2010). Three types of screen time (TV, electronic games, and PC time) were collected through a questionnaire, and data on three cardiovascular risk markers (resting heart rate; diastolic blood pressure [DBP]; and systolic blood pressure [SBP]) were collected by a trained fieldworker. Complex-samples generalized linear models were run for each combination of screen time predictor and cardiovascular risk outcome, and a clustered cardiovascular risk score, adjusting for potential confounders (including physical activity). Analyses were conducted in 2011 and 2012.Results: TV viewing, but not PC or electronic games time, was associated positively with clustered cardiovascular risk score, DBP, and SBP after adjustment for all covariates. Watching TV for >2 hours/day (compared to