Center for Health Promotion and Prevention Research, School of Public Health, University of Texas Health Science Center at Houston, Houston, Texas, USA.
Obesity (Silver Spring). 2010 Feb;18 Suppl 1:S99-101. doi: 10.1038/oby.2009.438.
Media consumption may contribute to childhood obesity. This study developed and evaluated a theory-based, parent-focused intervention to reduce television and other media consumption to prevent and reduce childhood obesity. Families (n = 202) with children ages 6-9 were recruited from a large, urban multiethnic population into a randomized controlled trial (101 families into the intervention group and 101 into the control group), and were followed for 6 months. The intervention consisted of a 2-hour workshop and six bimonthly newsletters. Behavioral objectives included: (i) reduce TV watching; (ii) turn off TV when nobody is watching; (iii) no TV with meals; (iv) no TV in the child's bedroom; and (v) engage in fun non-media related activities. Parents were 89% female, 44% white, 28% African American, 17% Latino, and 11% Asian, mean age 40 years (s.d. = 7.5); 72% were married. Children were 49% female, mean age 8 years (s.d. = 0.95). Sixty-five percent of households had three or more TVs and video game players; 37% had at least one handheld video game, and 53% had three or more computers. Average children's weekday media exposure was 6.1 hours. At 6 months follow-up, the intervention group was less likely to report the TV being on when nobody was watching (adjusted odds ratio (AOR) = 0.23, P < 0.05), less likely to report eating snacks while watching TV (AOR = 0.47, P < 0.05), and less likely to have a TV in the child's bedroom (AOR = 0.23, P < 0.01). There was a trend toward reducing actual media consumption but these outcomes did not reach statistical significance. Effective strategies to reduce children's TV viewing were identified.
媒体消费可能导致儿童肥胖。本研究制定并评估了一项基于理论、以家长为中心的干预措施，旨在减少儿童看电视和其他媒体的时间，以预防和减少儿童肥胖。研究从一个大型城市多民族人群中招募了 202 名 6-9 岁儿童的家庭，将他们随机分为干预组（101 个家庭）和对照组（101 个家庭），并进行了 6 个月的随访。干预措施包括 2 小时的研讨会和六期双月刊通讯。行为目标包括：（i）减少看电视时间；（ii）无人观看时关闭电视；（iii）吃饭时不看电视；（iv）儿童卧室不放置电视；（v）开展有趣的非媒体相关活动。家长中 89%为女性，44%为白人，28%为非裔美国人，17%为拉丁裔，11%为亚裔，平均年龄为 40 岁（标准差=7.5）；72%为已婚。儿童中 49%为女性，平均年龄为 8 岁（标准差=0.95）。65%的家庭拥有三台或更多电视机和视频游戏机；37%至少有一个手持视频游戏机，53%拥有三台或更多电脑。儿童平均工作日媒体接触时间为 6.1 小时。在 6 个月的随访中，干预组报告无人观看时电视开着的情况较少（调整后的优势比（AOR）=0.23，P<0.05），报告边看电视边吃零食的情况较少（AOR=0.47，P<0.05），且儿童卧室中放置电视的情况较少（AOR=0.23，P<0.01）。儿童实际媒体消费有减少的趋势，但这些结果没有达到统计学意义。本研究确定了减少儿童看电视时间的有效策略。
