Martin-Fernandez Katy W, Creel David B, Schuh Leslie M
Weight Management Center, Atrium Health Wake Forest Baptist, Winston-Salem, NC, US.
St. Vincent Bariatrics, Ascension St. Vincent Carmel Hospital, Carmel, IN, US.
J Behav Med. 2022 Apr;45(2):252-259. doi: 10.1007/s10865-021-00263-5. Epub 2021 Nov 13.
While significant weight loss occurs post-bariatric surgery, partial weight regain is common. Psychological and dispositional variables have been examined as predictors of weight change, but most studies have focused on the relationship of preoperative constructs to shorter-term postoperative outcomes. The goal of the current study was to examine associations between weight loss and postoperative psychosocial and behavioral factors up to an average of 13.7 years after surgery. The current study was conducted at a large bariatric center in a Midwestern U.S. city. The sample was comprised of 125 adult patients who participated in the second wave of a long-term bariatric surgery outcome study, examining weight history, physical activity, and psychological health and functioning. Correlations between percent total weight loss (%TWL) and psychosocial and behavioral variables were examined. The variables that had significant correlations with %TWL were used in stepwise linear regressions to determine their contribution to %TWL. These same variables were tested to determine differences among those in the highest and lowest weight loss quartiles. Life satisfaction, conscientiousness, positive affect, and regular exercise were positively associated with weight loss in the entire sample and were significantly higher among those in the highest versus the lowest weight-loss quartile. Experiencing a stressful event and food addiction symptoms were negatively associated with weight loss. Positive affect, fewer food addiction symptoms, and regular exercise significantly predicted weight loss, accounting for 23% of the variance in %TWL. Long-term weight loss maintenance after bariatric surgery may be related to positive affect, conscientiousness, regular physical activity, and an addictive-type relationship with food. Future studies should explore these relationships and develop approaches to deal with the interaction between dispositional tendencies and lifestyle factors.
虽然减肥手术后会出现显著的体重减轻，但部分体重反弹很常见。心理和性格变量已被作为体重变化的预测因素进行研究，但大多数研究都集中在术前因素与术后短期结果的关系上。本研究的目的是考察减肥手术后平均长达13.7年的体重减轻与术后心理社会和行为因素之间的关联。本研究在美国中西部一个城市的大型减肥中心进行。样本包括125名成年患者，他们参与了一项长期减肥手术结果研究的第二阶段，该研究考察了体重史、身体活动以及心理健康和功能。研究了总体重减轻百分比（%TWL）与心理社会和行为变量之间的相关性。与%TWL有显著相关性的变量被用于逐步线性回归，以确定它们对%TWL的贡献。对这些相同的变量进行测试，以确定体重减轻最高和最低四分位数人群之间的差异。在整个样本中，生活满意度、尽责性、积极情绪和规律运动与体重减轻呈正相关，且在体重减轻最高四分位数人群中显著高于最低四分位数人群。经历压力事件和食物成瘾症状与体重减轻呈负相关。积极情绪、较少的食物成瘾症状和规律运动显著预测了体重减轻，占%TWL方差的23%。减肥手术后长期维持体重减轻可能与积极情绪、尽责性、规律的体育活动以及与食物的成瘾型关系有关。未来的研究应探索这些关系，并开发应对性格倾向与生活方式因素之间相互作用的方法。
