Halford Jason Cg, Boyland Emma J, Hughes Georgina M, Stacey Leanne, McKean Sarah, Dovey Terence M
Kissileff Laboratory for the Study of Human Ingestive Behaviour, School of Psychology, Eleanor Rathbone Building, Bedford Street South, University of Liverpool, Liverpool L69 7ZA, UK.
Public Health Nutr. 2008 Sep;11(9):897-904. doi: 10.1017/S1368980007001231. Epub 2007 Nov 16.
To investigate the effect of television food advertising on children's food intake, specifically whether childhood obesity is related to a greater susceptibility to food promotion.
The study was a within-subject, counterbalanced design. The children were tested on two occasions separated by two weeks. One condition involved the children viewing food advertisements followed by a cartoon, in the other condition the children viewed non-food adverts followed by the same cartoon. Following the cartoon, their food intake and choice was assessed in a standard paradigm.
The study was conducted in Liverpool, UK.
Fifty-nine children (32 male, 27 female) aged 9-11 years were recruited from a UK school to participate in the study. Thirty-three children were normal-weight (NW), 15 overweight (OW) and 11 obese (OB).
Exposure to food adverts produced substantial and significant increases in energy intake in all children (P < 0.001). The increase in intake was largest in the obese children (P = 0.04). All children increased their consumption of high-fat and/or sweet energy-dense snacks in response to the adverts (P < 0.001). In the food advert condition, total intake and the intake of these specific snack items correlated with the children's modified age- and gender-specific body mass index score.
These data suggest that obese and overweight children are indeed more responsive to food promotion, which specifically stimulates the intake of energy-dense snacks.
研究电视食品广告对儿童食物摄入量的影响，特别是儿童肥胖是否与更容易受到食品促销影响有关。
该研究为受试者内平衡设计。儿童在相隔两周的两个时间段接受测试。一种情况是儿童先观看食品广告，然后观看卡通片；另一种情况是儿童先观看非食品广告，然后观看相同的卡通片。观看卡通片后，按照标准范式评估他们的食物摄入量和选择。
该研究在英国利物浦进行。
从英国一所学校招募了59名9至11岁的儿童（32名男性，27名女性）参与研究。33名儿童体重正常（NW），15名超重（OW），11名肥胖（OB）。
接触食品广告使所有儿童的能量摄入量大幅显著增加（P < 0.001）。肥胖儿童的摄入量增加最大（P = 0.04）。所有儿童在观看广告后都增加了对高脂肪和/或高糖能量密集型零食的消费（P < 0.001）。在食品广告条件下，总摄入量和这些特定零食的摄入量与儿童根据年龄和性别调整后的体重指数得分相关。
这些数据表明，肥胖和超重儿童确实对食品促销反应更强烈，食品促销尤其会刺激能量密集型零食的摄入。
