Tucker L A, Bagwell M
Brigham Young University, Provo, UT 84602.
Am J Public Health. 1991 Jul;81(7):908-11. doi: 10.2105/ajph.81.7.908.
We measured the relation between time spent watching television per week and obesity in 4,771 adult females. After controlling for age, education, cigarette smoking, length of work week, and weekly duration of exercise, females who reported three to four hours of TV viewing per day showed almost twice the prevalence of obesity (body fat greater than 30 percent), and those who reported more than four hours of TV watching per day showed more than double the prevalence of obesity, compared to the reference group (less than 1 hr/day). Part of the TV/obesity association was a function of differences in exercise duration among the four TV viewing categories.
我们在4771名成年女性中测量了每周看电视时长与肥胖之间的关系。在控制了年龄、教育程度、吸烟情况、每周工作时长和每周锻炼时长后，与参照组（每天看电视少于1小时）相比，报告每天看电视三到四小时的女性肥胖患病率（体脂率大于30%）几乎高出一倍，而报告每天看电视超过四小时的女性肥胖患病率则高出一倍多。看电视与肥胖之间的部分关联是由四个看电视时长类别之间锻炼时长的差异所导致的。
