Research Unit for Dietary Studies, Institute of Preventive Medicine, Copenhagen University Hospital, Centre for Health and Society, DK-1357 Copenhagen K, Denmark.
BMC Public Health. 2011 May 13;11:311. doi: 10.1186/1471-2458-11-311.
Obesity has increased since the early 1980s, and despite numerous attempts, effective strategies to counter this worldwide epidemic are lacking. Food preferences are established early in life and are difficult to change later. There is therefore a need to identify factors that influence the development of food preferences. Our aim was therefore, to investigate cross-sectional and prospective associations between TV viewing habits and food preferences and habits, respectively. We hypothesized that more TV viewing was associated with less healthy concomitant and future food preferences and food habits.
Data are from the Danish part of European Youth Heart Study (EYHS) I and II, a prospective cohort study conducted among 8-10-year-old and 14-16-year-old Danes in 1997-98. Six years later 2003-04 the 8-10-year-olds were followed up at age 14-16 years, and a new group of 8-10-year olds were included. Data were analysed using mixed linear regression analysis. Cross-sectional analyses included 697 8-10-year-olds and 495 14-16-year-olds. Prospective analyses included 232 pupils with complete data at baseline and follow-up. Associations between TV viewing habits and the sum of healthy food preferences (ΣHFP), and the sum of healthy food habits (ΣHFH), respectively, were examined.
Inverse cross-sectional associations between TV viewing (h/day) and both ΣHFP and ΣHFH were present for both the 8-10-year-old and the 14-16-year-old boys and girls. The frequency of meals in front of the TV (times/week) was also inversely associated with ΣHFP among 8-10-year-old boys, and with ΣHFH in all sex- and age groups. Among girls, baseline TV viewing (h/day) was directly associated with adverse development in the ΣHFP during follow-up. The concomitant 6-year changes in ΣHFH and TV viewing (h/day) were inversely associated in boys.
Long time spent on TV viewing, and possibly to a lesser degree, frequent consumption of meals during TV viewing, seem to be associated with generally having unhealthy food preferences and food habits among school-aged children. These associations, however, were not generally persistent after 6 years of follow-up.
自 20 世纪 80 年代初以来，肥胖问题日益严重，尽管人们进行了多次尝试，但仍缺乏有效的策略来应对这一全球性的健康危机。人们的食物偏好早在生命早期就已经形成，并且之后很难改变。因此，有必要确定影响食物偏好发展的因素。我们的目的是分别研究电视观看习惯与食物偏好和习惯之间的横断面和前瞻性关联。我们假设，更多的电视观看与更不健康的当前和未来的食物偏好和饮食习惯有关。
数据来自丹麦部分的欧洲青年心脏研究（EYHS）I 和 II，这是一项在 1997-98 年对 8-10 岁和 14-16 岁丹麦人进行的前瞻性队列研究。6 年后，即 2003-04 年，对 8-10 岁的儿童进行了 14-16 岁的随访，同时纳入了一组新的 8-10 岁的儿童。使用混合线性回归分析对数据进行了分析。横断面分析包括 697 名 8-10 岁儿童和 495 名 14-16 岁儿童。前瞻性分析包括了 232 名基线和随访时数据完整的学生。分别检查了电视观看习惯与健康食物偏好总和（ΣHFP）和健康食物习惯总和（ΣHFH）之间的关联。
对于 8-10 岁和 14-16 岁的男孩和女孩，电视观看时间（h/天）与 ΣHFP 和 ΣHFH 均存在负相关关系。对于 8-10 岁的男孩，每周在电视机前用餐的次数与 ΣHFP 呈负相关，对于所有性别和年龄组，与 ΣHFH 呈负相关。对于女孩，基线时的电视观看时间（h/天）与随访期间 ΣHFP 的不良变化呈正相关。男孩的同期 6 年 ΣHFH 和电视观看时间（h/天）呈负相关。
长时间看电视，可能在较小程度上，在看电视时经常进餐，这似乎与学龄儿童普遍存在不健康的食物偏好和饮食习惯有关。然而，在 6 年的随访后，这些关联并不普遍存在。
