Johnson Kay M, Nelson Karin M, Bradley Katharine A
Primary and Specialty Medical Care Service, VA Puget Sound Health Care System, Seattle, WA 98108, USA.
J Gen Intern Med. 2006 Mar;21 Suppl 3(Suppl 3):S76-81. doi: 10.1111/j.1525-1497.2006.00379.x.
Obesity is epidemic in the U.S. and has been associated with television viewing.
To describe the association between obesity and television viewing practices among women veterans.
DESIGN, SETTING AND PARTICIPANTS: Cross-sectional, mailed survey completed by 1,555 female veterans enrolled at the VA Puget Sound Health Care System in 2000.
We used bivariate and multivariate analyses to assess the association of obesity (body mass index >30 kg/m2 based on self-reported height and weight) with self-reported number of hours of television or videos viewed per day, and frequency of eating meals or snacking while watching television, controlling for other covariates.
Watching television >2 hours per typical day on week days and/or weekends was associated with obesity (P<.001), as was eating or snacking while watching television (P=.003). In multivariate logistic regression analyses, watching television >2 hours per day and eating or snacking while watching television were each associated with obesity (odds ratio [OR] 1.4, 95% confidence interval [CI] 1.1 to 1.8; and OR 1.3, 95% CI 1.0 to 1.7, respectively), after adjusting for demographic variables, smoking, physical activity, and depression. Results were similar when posttraumatic stress disorder was included in the model instead of depression. Women who both watched >2 hours of television per day and ate or snacked while viewing were almost twice as likely to be obese (OR 1.9, 95% CI 1.4 to 2.6).
Watching television over 2 hours per day and eating while watching television were each associated with obesity among female VA patients and may be modifiable risk factors for obesity.
肥胖在美国呈流行趋势，且与看电视有关。
描述退伍女兵中肥胖与看电视习惯之间的关联。
设计、场所和参与者：2000年对在普吉特海湾退伍军人医疗保健系统登记的1555名退伍女兵进行的横断面邮寄调查。
我们采用双变量和多变量分析，评估肥胖（根据自我报告的身高和体重计算，体重指数>30kg/m²）与自我报告的每天看电视或视频的小时数，以及看电视时进餐或吃零食的频率之间的关联，并对其他协变量进行控制。
在工作日和/或周末每天看电视超过2小时与肥胖相关（P<0.001），看电视时进餐或吃零食也与肥胖相关（P=0.003）。在多变量逻辑回归分析中，每天看电视超过2小时以及看电视时进餐或吃零食均与肥胖相关（优势比[OR]分别为1.4，95%置信区间[CI]为1.1至1.8；以及OR为1.3，95%CI为1.0至1.7），在对人口统计学变量、吸烟、身体活动和抑郁进行调整之后。当模型中纳入创伤后应激障碍而非抑郁时，结果相似。每天看电视超过2小时且看电视时进餐或吃零食的女性肥胖的可能性几乎是其他人的两倍（OR为1.9，95%CI为1.4至2.6）。
在退伍女性患者中，每天看电视超过2小时以及看电视时进餐均与肥胖相关，可能是肥胖的可改变危险因素。
