Weiss Edward C, Galuska Deborah A, Kettel Khan Laura, Gillespie Cathleen, Serdula Mary K
National Center for Chronic Disease Prevention and Health Promotion, Division of Nutrition and Physical Activity, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Am J Prev Med. 2007 Jul;33(1):34-40. doi: 10.1016/j.amepre.2007.02.040.
Relatively few studies have focused on who is at risk for weight regain after weight loss and how to prevent it. The objectives of this study were to determine the prevalence and predictors of weight regain in U.S. adults who had experienced substantial weight loss.
Data were analyzed from the 1999-2002 National Health and Nutrition Examination Survey (NHANES). This study examined U.S. adults aged 20-84 years who were overweight or obese at their maximum weight (body mass index >/=25) and had experienced substantial weight loss (weighed 10% less than their maximum weight 1 year before they were surveyed) (n=1310).
Compared to their weight 1 year ago, 7.6% had continued to lose weight (>5%), 58.9% had maintained their weight (within 5%), and 33.5% had regained weight (>5%). Factors associated with weight regain (vs weight maintenance or loss) included Mexican American ethnicity (versus non-Hispanic white) (odds ratio [OR]=2.0; 95% confidence interval [CI]=1.3-3.1), losing a greater percentage of maximum weight (>/=20% vs 10% to <15%) (OR=2.8; 95% CI=2.0-4.1), having fewer years since reaching maximum weight (2-5 years vs >10 years) (OR=2.1; 95% CI=1.2-3.7), reporting greater daily screen time (>/=4 hours vs 0-1 hour) (OR=2.0; 95% CI=1.3-3.2), and attempting to control weight (OR=1.8; 95% CI=1.1-3.0). Finally, weight regain was higher in those who were sedentary (OR=1.8; 95% CI=1.0-3.0) or not meeting public health recommendations for physical activity (OR=2.0; 95% CI=1.2-3.5).
How to achieve the skills necessary for long-term maintenance of weight loss in the context of an obesogenic environment remains a challenge.
相对较少的研究关注减肥后体重反弹的风险人群以及如何预防体重反弹。本研究的目的是确定经历大幅体重减轻的美国成年人中体重反弹的患病率及其预测因素。
对1999 - 2002年国家健康与营养检查调查（NHANES）的数据进行分析。本研究调查了年龄在20 - 84岁之间、在最高体重时超重或肥胖（体重指数≥25）且经历过大幅体重减轻（在接受调查前1年的体重比其最高体重轻10%）的美国成年人（n = 1310）。
与1年前的体重相比，7.6%的人继续减重（>5%），58.9%的人体重维持稳定（在5%以内），33.5%的人体重反弹（>5%）。与体重反弹（相对于体重维持或减轻）相关的因素包括墨西哥裔美国人种族（与非西班牙裔白人相比）（比值比[OR]=2.0；95%置信区间[CI]=1.3 - 3.1）、最高体重减轻的百分比更高（≥20% 对比10%至<15%）（OR = 2.8；95% CI = 2.0 - 4.1）、达到最高体重后的年限较少（2 - 5年对比>10年）（OR = 2.1；95% CI = 1.2 - 3.7）、报告的每日屏幕时间更长（≥4小时对比0 - 1小时）（OR = 2.0；95% CI = 1.3 - 3.2）以及尝试控制体重（OR = 1.8；95% CI = 1.1 - 3.0）。最后，久坐不动的人（OR = 1.8；95% CI = 1.0 - 3.0）或未达到公共卫生身体活动建议标准的人（OR = 2.0；95% CI = 1.2 - 3.5）体重反弹情况更严重。
在致胖环境下如何掌握长期维持体重减轻所需的技能仍是一项挑战。
