Gorin Amy A, Phelan Suzanne, Hill James O, Wing Rena R
Weight Control and Diabetes Research Center, The Miriam Hospital/Brown Medical School, Providence, RI 02903, USA.
Prev Med. 2004 Sep;39(3):612-6. doi: 10.1016/j.ypmed.2004.02.026.
Medical events are often reported as triggers for weight loss, but it is unknown whether medical triggers result in better short- and long-term weight control.
The relationship between medical triggers and weight loss was examined in the National Weight Control Registry (NWCR), a database of individuals who have lost > or =30 lbs and kept it off for > or =1 year. Recall of weight loss triggers may become difficult over time, thus participants were limited to those reporting weight loss <5 years ago. Three groups were examined: (1) participants with medical triggers (N = 207), (2) participants with nonmedical triggers (N = 539), and (3) participants with no trigger (N = 171).
Participants with medical triggers were older than those with nonmedical triggers or no trigger (50.5 +/- 11.7, 44.9 +/- 11.8, 46.7 +/- 13.3 years; P = 0.0001), had a higher initial BMI at entry into the NWCR (26.1 +/- 5.0, 25.0 +/- 4.3, 24.8 +/- 4.4 kg/m2; P = 0.004), and were more likely to be male (37.1%, 18%, 17.2%; P = 0.0001). Participants with medical triggers reported greater initial weight loss than those with nonmedical triggers or no trigger (36.5 +/- 25.0, 31.8 +/- 16.6, 31.8 +/- 17.1 kg; P = 0.01). Participants with medical triggers also gained less weight over 2 years of follow-up than those with nonmedical triggers or no trigger (P = 0.003).
Medical triggers may produce a teachable moment for weight control, resulting in better initial weight loss and long-term maintenance.
医疗事件常被报告为体重减轻的诱因，但尚不清楚医疗诱因是否能带来更好的短期和长期体重控制效果。
在国家体重控制登记处（NWCR）中研究医疗诱因与体重减轻之间的关系，该数据库收录了体重减轻≥30磅且维持该体重≥1年的个体。随着时间推移，回忆体重减轻的诱因可能变得困难，因此参与者限于那些报告体重减轻发生在5年前以内的人。研究了三组对象：（1）有医疗诱因的参与者（N = 207），（2）有非医疗诱因的参与者（N = 539），以及（3）无诱因的参与者（N = 171）。
有医疗诱因的参与者比有非医疗诱因或无诱因的参与者年龄更大（50.5±11.7、44.9±11.8、46.7±13.3岁；P = 0.0001），进入NWCR时的初始体重指数更高（26.1±5.0、25.0±4.3、24.8±4.4kg/m²；P = 0.004），且更可能为男性（37.1%、18%、17.2%；P = 0.0001）。有医疗诱因的参与者报告的初始体重减轻比有非医疗诱因或无诱因的参与者更多（36.5±25.0、31.8±16.6、31.8±17.1kg；P = 0.01）。在2年的随访中，有医疗诱因的参与者体重增加也比有非医疗诱因或无诱因的参与者少（P = 0.003）。
医疗诱因可能为体重控制带来可教导的契机，从而带来更好的初始体重减轻和长期维持效果。
