Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Miriam Hospital, Providence, Rhode Island, USA.
Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.
Obesity (Silver Spring). 2020 Mar;28(3):521-528. doi: 10.1002/oby.22720. Epub 2020 Feb 6.
This study aimed to characterize young adults who experienced significant weight gains (> 10%) over 3 years in a weight gain prevention program.
Secondary data analysis from the Study of Novel Approaches to Weight Gain Prevention (SNAP), a randomized trial comparing two self-regulation interventions and a control arm in young adults (18-35 years; BMI 21-30.9 kg/m ), was used. Large Gainers (≥ 10% of their body weight; n = 48), Small Gainers (2.6%-9.9%; n = 149), and Weight Stable participants (± 2.5%; n = 143) were compared on dimensions affecting weight gain.
Differences in weight gain among the three groups were significant by year 1 and subsequently increased. Those who became Large Gainers were heavier at baseline and further below their highest weight, and they reported more weight cycling than Weight Stable, with Small Gainers intermediate. Neither study arm nor pregnancy explained weight change differences among the three groups. Large Gainers reported more depressive symptoms than Weight Stable at years 1 and 2. Large Gainers were less likely to weigh themselves at least weekly at 4 months, before differences in weight gain emerged, and at years 1 and 2.
Large Gainers (representing almost 10% of participants) could be identified early by greater weight issues at baseline and lower use of weight gain prevention strategies.
本研究旨在描述在体重增加预防计划中经历体重显著增加（>10%）的年轻成年人的特征。
使用体重增加预防研究（SNAP）的二次数据分析，该研究是一项比较两种自我调节干预措施和对照组在年轻成年人（18-35 岁；BMI 21-30.9 kg/m ）中的随机试验。大量增重者（体重增加≥10%；n=48）、少量增重者（2.6%-9.9%；n=149）和体重稳定者（±2.5%；n=143）在影响体重增加的维度上进行了比较。
三组之间的体重增加差异在第 1 年显著，随后增加。大量增重者的基线体重更重，且进一步低于其最高体重，并且与体重稳定者相比，他们报告了更多的体重波动，而少量增重者则处于中间位置。研究组和怀孕都不能解释三组之间的体重变化差异。大量增重者在第 1 年和第 2 年的抑郁症状比体重稳定者更为严重。大量增重者在体重增加差异出现之前的 4 个月、第 1 年和第 2 年更不可能每周至少称一次体重。
大量增重者（代表参与者的近 10%）可以通过基线时更大的体重问题和更低的体重增加预防策略的使用来早期识别。
