Ugarte Carla, Quiñones Álvaro, Vicente Benjamín
Departamento de Psiquiatría y Salud Mental, Facultad de Medicina, Universidad de Concepción, Concepción, Chile.
Instituto de Ciencias Humanas Aplicadas, Facultad de Psicología, Universidad San Sebastián, Santiago, Chile.
Rev Med Chil. 2019 Nov;147(11):1390-1397. doi: 10.4067/S0034-98872019001101390.
Background Approximately 15 to 40% of bariatric patients regain a significant percentage of their weight lost after surgery. Among psychological variables, control and self-efficacy loci are associated with behaviors related to weight loss. Also, family support can be a risk or protection factor for the maintenance of weight loss. Aim To evaluate the association between psychological variables with weight maintenance or regain after bariatric surgery. Material and Methods We evaluated 97 patients at 4.1 ± 3.4 years after their bariatric surgery. They answered questionnaires about self-efficacy to lose weight, locus of weight control and family functioning style. Regain after surgery was also calculated, through self-report. Results Seventeen percent of patients gained weight. Locus of control (Z = -3.09, p < 0.01), family identity (Z = -3.71, p < 0.01) and self-efficacy (Z = -2.44, p = 0.01), differentiated patients who maintained weight loss from those who re-gained at least 15% of their lost weight. An inverse and significant relationship was observed between the percentage of weight regain and locus of control (r = -0.42, p < 0.01), family identity (r = -0.36, p < 0.01) and self-efficacy (r = -0.34, p <0.01). Conclusions The psychological variables "locus of weight control" and "family identity" are inversely and moderately associated with weight regain in patients subjected to bariatric surgery.
大约15%至40%的肥胖症患者在手术后体重显著反弹，反弹幅度为其术后减重的很大比例。在心理变量中，控制感和自我效能源与减肥相关行为有关。此外，家庭支持可能是维持体重减轻的风险因素或保护因素。目的：评估心理变量与肥胖症手术后体重维持或反弹之间的关联。材料与方法：我们对97例肥胖症手术患者在术后4.1±3.4年进行了评估。他们回答了关于减肥自我效能、体重控制源和家庭功能模式的问卷。术后体重反弹情况也通过自我报告进行计算。结果：17%的患者体重增加。控制源（Z=-3.09，p<0.01）、家庭认同感（Z=-3.71，p<0.01）和自我效能（Z=-2.44，p=0.01）能够区分体重维持者和体重至少反弹了其减重15%的患者。体重反弹百分比与控制源（r=-0.42，p<0.01）、家庭认同感（r=-0.36，p<0.01）和自我效能（r=-0.34，p<0.01）之间存在显著的负相关关系。结论：“体重控制源”和“家庭认同感”这两个心理变量与接受肥胖症手术患者的体重反弹呈中度负相关。
