Pardee Perrie E, Norman Gregory J, Lustig Robert H, Preud'homme Daniel, Schwimmer Jeffrey B
Department of Pediatrics, School of Medicine, University of California, Rady Children's Hospital and Health Center, San Diego 92103-845, USA.
Am J Prev Med. 2007 Dec;33(6):439-43. doi: 10.1016/j.amepre.2007.07.036.
Television viewing is strongly associated with an increased risk of childhood and adolescent obesity. However, the association between TV viewing and hypertension in children is unknown. This study aimed to identify whether TV watching is associated with hypertension in obese children.
Children seen for obesity, aged 4 to 17 years, were evaluated at three pediatric centers from 2003 to 2005. In 2006-2007, a logistic regression model estimated the odds of hypertension for hours of daily TV time controlling for race, site, and body mass index (BMI) z-score.
A total of 546 subjects, with a mean age of 12 years, were evaluated. The children had a mean BMI of 35.5+/-9.3 kg/m(2) (98.7th+/-0.8 percentile, z-score 2.54+/-0.4). TV time was positively correlated with the severity of obesity. After controlling for race, site, and BMI z-score, both the severity of obesity and daily TV time were significant independent predictors of the presence of hypertension. Children watching 2 to 4 hours of TV had 2.5 times the odds of hypertension compared with children watching 0 to <2 hours. The odds of hypertension for children watching 4 or more hours of TV were 3.3 times greater than for children watching 0 to <2 hours of TV.
In obese children, the amount of time spent watching TV is associated with both hypertension and the severity of obesity. Thus, TV viewing is a potential target for addressing hypertension in obese children.
看电视与儿童及青少年肥胖风险增加密切相关。然而，看电视与儿童高血压之间的关联尚不清楚。本研究旨在确定看电视是否与肥胖儿童的高血压有关。
2003年至2005年，在三个儿科中心对4至17岁因肥胖前来就诊的儿童进行了评估。在2006 - 2007年，采用逻辑回归模型估计每日看电视时长与高血压发生几率的关系，同时控制种族、地点和体重指数（BMI）z评分。
共评估了546名受试者，平均年龄为12岁。这些儿童的平均BMI为35.5±9.3kg/m²（第98.7百分位±0.8，z评分2.54±0.4）。看电视时间与肥胖严重程度呈正相关。在控制了种族、地点和BMI z评分后，肥胖严重程度和每日看电视时间都是高血压存在的显著独立预测因素。与每天看电视0至<2小时的儿童相比，每天看电视2至4小时的儿童患高血压的几率是其2.5倍。每天看电视4小时或更长时间的儿童患高血压的几率比每天看电视0至<2小时的儿童高3.3倍。
在肥胖儿童中，看电视的时间与高血压及肥胖严重程度均有关联。因此，看电视是解决肥胖儿童高血压问题的一个潜在目标。
