电视、身体活动、饮食与体重状况：ARIC 队列研究。
Television, physical activity, diet, and body weight status: the ARIC cohort.
机构信息
Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
出版信息
Int J Behav Nutr Phys Act. 2008 Dec 17;5:68. doi: 10.1186/1479-5868-5-68.
BACKGROUND
Television (TV) watching is the most common leisure activity in the United States. Few studies of adults have described the relationship between TV and health behaviors such as physical activity, diet, and body weight status.
METHODS
Extant data from the Atherosclerosis Risk in Communities (ARIC) Study were analyzed to assess the association of TV with physical activity, diet, and body mass index (BMI) among 15,574 adults at baseline (1986-89) and 12,678 adults six years later. Television, physical activity, and diet were collected with questionnaires and BMI was measured at both time points. Based on baseline TV exposure, adults were categorized into high, medium, and low TV exposure. Linear and logistic regression models were adjusted for gender, age, race-center, smoking, education, and general health.
RESULTS
Relative to participants who had low TV exposure, those with high TV exposure were more likely to be less physically active and have a poorer dietary profile at baseline and six-years later. Participants with high TV exposure at baseline had a 40% and 31% greater odds of being considered insufficiently active at baseline (1.40, 95% CI 1.26, 1.55), and six years later (1.31, 95% CI 1.18, 1.46). At baseline, high TV exposure was also associated with a 20% to 30% greater odds of being above the median for servings of salty snacks (1.37, 95% CI 1.24, 1.51), sweets (1.26, 95% CI 1.15, 1.38), and sweetened drinks (1.29, 95% CI 1.17, 1.42), and below the median for fruit and vegetable servings (1.36, 95% CI 1.24, 1.50). Higher TV exposure was also cross-sectionally associated with a greater odds for being overweight or obese (1.43, 95% CI 1.29, 1.58). Similar associations were observed between baseline TV exposure and six-year physical activity and diet, but were not observed with BMI after six years follow-up.
CONCLUSION
These results support the hypothesis that time spent watching TV is associated with deleterious effects on physical activity, diet, and BMI.
背景
看电视是美国最常见的休闲活动。很少有研究描述过电视与体育活动、饮食和体重状况等健康行为之间的关系。
方法
分析了社区动脉粥样硬化风险研究（ARIC）中的现有数据，以评估基线时（1986-89 年）和 6 年后（1994-95 年） 15574 名成年人和 12678 名成年人的电视与体育活动、饮食和体重指数（BMI）之间的关系。电视、体育活动和饮食通过问卷收集，BMI 在两个时间点测量。根据基线时的电视暴露情况，成年人分为高、中、低电视暴露。线性和逻辑回归模型根据性别、年龄、种族中心、吸烟、教育和一般健康状况进行调整。
结果
与低电视暴露的参与者相比，高电视暴露的参与者在基线和 6 年后更可能身体活动较少，饮食模式较差。基线时高电视暴露的参与者，在基线时（1.40，95%CI 1.26，1.55）和 6 年后（1.31，95%CI 1.18，1.46）被认为活动不足的可能性分别增加了 40%和 31%。此外，基线时高电视暴露也与摄入咸点心（1.37，95%CI 1.24，1.51）、甜食（1.26，95%CI 1.15，1.38）和加糖饮料（1.29，95%CI 1.17，1.42）的中位数以上和水果和蔬菜摄入量（1.36，95%CI 1.24，1.50）的中位数以下的可能性分别增加 20%至 30%相关。高电视暴露也与超重或肥胖（1.43，95%CI 1.29，1.58）的几率增加有关。在基线电视暴露与 6 年后的身体活动和饮食之间也观察到了类似的关联，但在 6 年后的 BMI 随访中没有观察到。
结论
这些结果支持这样一种假设，即看电视的时间与体育活动、饮食和 BMI 的有害影响有关。
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