Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA
Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California, USA.
BMJ Open. 2022 May 24;12(5):e059611. doi: 10.1136/bmjopen-2021-059611.
The Bariatric Experience Long Term (BELONG) prospective study cohort was created to address limitations in the literature regarding the relationship between surgical weight loss and psychosocial, health, behaviour and environmental factors. The BELONG cohort is unique because it contains 70% gastric sleeve and 64% patients with non-white race/ethnicity and was developed with strong stakeholder engagement including patients and providers.
The BELONG cohort study included 1975 patients preparing to have bariatric surgery who completed a baseline survey in a large integrated health system in Southern California. Patients were primarily women (84%), either black or Hispanic (59%), with a body mass index (BMI) of 45.1±7.4 kg/m, age 43.3±11.5 years old, and 32% had at least one comorbidity.
A total of 5552 patients were approached before surgery between February 2016 and May 2017, and 1975 (42%) completed a baseline survey. A total of 1203 (73%) patients completed the year 1 and 1033 (74%) patients completed the year 3 postoperative survey. Of these survey respondents, 1341 at baseline, 999 at year 1, and 951 at year 3 were included in the analyses of all survey and weight outcome data. A total of 803 (60% of eligible patients) had survey data for all time points. Data collected were self-reported constructs to support the proposed theoretical model. Height, weight and BMI were abstracted from the electronic medical record to obtain the main outcomes of the study: weight loss and regain.
We will collect self-reported constructs and obtain height, weight and BMI from the electronic medical record 5 years after bariatric surgery between April 2022 and January 2023. We will also collect patient experiences using focus groups of 8-12 patients each throughout 2022.
创建减重体验长期（BELONG）前瞻性研究队列，以解决文献中关于手术减重与心理社会、健康、行为和环境因素之间关系的局限性。BELONG 队列是独一无二的，因为它包含 70%的胃袖状切除术和 64%的非白种人群体，并且是在包括患者和提供者在内的利益相关者的大力参与下开发的。
BELONG 队列研究包括 1975 名准备接受减重手术的患者，他们在加利福尼亚州南部的一个大型综合医疗系统中完成了基线调查。患者主要为女性（84%），要么是黑人或西班牙裔（59%），体重指数（BMI）为 45.1±7.4kg/m2，年龄 43.3±11.5 岁，32%至少有一种合并症。
2016 年 2 月至 2017 年 5 月，在手术前共接触了 5552 名患者，其中 1975 名（42%）完成了基线调查。共有 1203 名（73%）患者完成了第 1 年的随访，1033 名（74%）患者完成了第 3 年的术后随访。在这些调查应答者中，有 1341 名在基线时、999 名在第 1 年和 951 名在第 3 年的调查中被纳入了所有调查和体重结果数据的分析。共有 803 名（合格患者的 60%）在所有时间点都有调查数据。收集的数据是支持拟议理论模型的自我报告结构。身高、体重和 BMI 从电子病历中提取，以获得研究的主要结果：体重减轻和反弹。
我们将在 2022 年 4 月至 2023 年 1 月期间收集减重手术后 5 年的自我报告结构，并从电子病历中获取身高、体重和 BMI。我们还将在 2022 年全年使用每个小组 8-12 名患者的焦点小组收集患者体验。
