Burke Valerie, Beilin Lawrie J, Durkin Kevin, Stritzke Werner G K, Houghton Stephen, Cameron Charmaine A
University of Western Australia, School of Medicine & Pharmacology, Royal Perth Hospital Unit.
Int J Pediatr Obes. 2006;1(4):248-55. doi: 10.1080/17477160600984975.
To examine sedentary behaviours (including television viewing, playing computer games and computer use), diet, exercise and fitness in relation to overweight/obesity in Australian adolescents.
Questionnaires elicited food frequency data, time spent in TV-viewing, using computers, other sedentary occupations and physical activity recall. Weight, height and fitness (laps completed in the Leger test) were measured.
Among 281 boys and 321 girls, mean age 12 years (SD 0.9), 56 boys (20.0%) and 70 girls (23.3%) were overweight/obese. Greater fitness was associated with decreased risk of overweight/obesity in boys (Odds ratio [OR] 0.74; 95% CI 0.55, 0.99) and girls (OR 0.93; 95% CI 0.91, 0.99). TV-viewing predicted increased risk in boys (OR 1.04; 95% CI 1.01, 1.06) and decreased risk in girls (OR 0.99; 95% CI 0.96, 0.99). Computer use, video games, and other sedentary behaviours were not significantly related to risk of overweight/obesity. Vegetable intake was associated with lower risk in boys (OR 0.98; 95% CI 0.97, 0.99); greater risk was associated with lower fat intake in boys and girls, lower consumption of energy-dense snacks in boys (OR 0.74; 95% CI 0.62, 0.88) and greater intake of vegetables in girls (OR 1.02; 95% CI 1.00, 1.03), suggesting dieting or knowledge of favourable dietary choices in overweight/obese children.
Among these adolescents, fitness was negatively related to risk for overweight/obesity in boys and girls. TV-viewing was a positive predictor in boys and a negative predictor in girls but the effect size was small; other sedentary behaviours did not predict risk.
研究澳大利亚青少年的久坐行为（包括看电视、玩电脑游戏和使用电脑）、饮食、运动及健康状况与超重/肥胖的关系。
通过问卷调查获取食物频率数据、看电视时间、使用电脑时间、其他久坐活动时间及体力活动回忆情况。测量体重、身高及健康状况（莱杰测试完成的圈数）。
在281名男孩和321名女孩中，平均年龄12岁（标准差0.9），56名男孩（20.0%）和70名女孩（23.3%）超重/肥胖。较高的健康水平与男孩（优势比[OR]0.74；95%置信区间0.55，0.99）和女孩（OR 0.93；95%置信区间0.91，0.99）超重/肥胖风险降低相关。看电视预示男孩超重/肥胖风险增加（OR 1.04；95%置信区间1.01，1.06），女孩风险降低（OR 0.99；95%置信区间0.96，0.99）。使用电脑、玩电子游戏及其他久坐行为与超重/肥胖风险无显著关联。蔬菜摄入量与男孩较低风险相关（OR 0.98；95%置信区间0.97，0.99）；男孩和女孩脂肪摄入量较低、男孩能量密集型零食摄入量较低（OR 0.74；95%置信区间0.62，0.88）以及女孩蔬菜摄入量较高（OR 1.02；95%置信区间1.00，1.03）与较高风险相关，提示超重/肥胖儿童存在节食或知晓有利饮食选择的情况。
在这些青少年中，健康水平与男孩和女孩超重/肥胖风险呈负相关。看电视是男孩超重/肥胖风险的正向预测因素，女孩的负向预测因素，但效应量较小；其他久坐行为不能预测风险。
