Yu, Yang
(2019)
Patients’ Experiences, Post-operative Psychosocial and Behavioral Factors Related to Weight Change among Patients who have Undergone Sleeve Gastrectomy in China.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
Background: Sleeve gastrectomy (SG) is the most widely used surgical treatment for morbid obesity. Post-operative weight loss is highly variable, and there has been limited research conducted to examine the various factors that contribute to weight loss outcomes following the SG procedure.
Objectives: To describe the psychosocial status and to explore factors that may contribute to weight loss variability among post-SG adults in China, including patient experiences with post-surgical lifestyle change, post-operative psychosocial (disordered eating, depression, self-efficacy, and social problem solving) and behavioral factors (diet and physical activity).
Methods: This study included two phases. First, semi-structured interviews were conducted with 15 post-SG adults in Shanghai Huashan Hospital, China. Interviews explored patient experiences of post-surgical lifestyle changes and their perceived barriers and facilitators to make the required changes. Second, in addition to the 15 participants, we further recruited 52 adults for cross-sectional measurements. Standardized questionnaires were used to measure disordered eating behaviors, depression, self-efficacy, social problem solving and physical activity. One day paper diary was used to assess dietary behavior. Weight was based on self-report.
Results: Qualitative findings revealed that SG imposed a drastic lifestyle change on participants, they viewed the changes positively and were able to use some of the core behavior change techniques (e.g., self-monitoring) to make appropriate adjustments. Both individual- and community-level barriers existed for patients to meet the required lifestyle changes. Participants reported significant post-surgical weight loss with a mean body mass index change of 12.52±6.12 kg/m2 in the quantitative phase. They demonstrated high level of self-efficacy (112.42±40.60) without obvious disordered eating disorders (43.60±25.61) and depressive symptoms (14.22±11.00). The level of social problem solving skills (89.5±12.87) was relatively low. Reported PA was far from recommended level, and the quality of dietary data was low. Self-efficacy and the subscale of disordered eating behaviors (body dissatisfaction) significantly correlated with weight loss outcome.
Conclusion: Findings suggest that participants had good psychosocial status after SG and were able to use accurate strategies for making post-surgical lifestyle adjustments. Larger longitudinal studies incorporating pre-surgical assessments were needed to further understand the psychosocial and behavioral mechanism in weight loss effect among SG population.
Share
| Citation/Export: |
|
| Social Networking: |
|
Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
|
| Date: |
15 August 2019 |
| Date Type: |
Publication |
| Defense Date: |
27 June 2019 |
| Approval Date: |
15 August 2019 |
| Submission Date: |
14 August 2019 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Number of Pages: |
172 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
School of Nursing > Nursing |
| Degree: |
PhD - Doctor of Philosophy |
| Thesis Type: |
Doctoral Dissertation |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
sleeve gastrectomy; weight; psychosocial and behavioral factors |
| Date Deposited: |
15 Aug 2019 16:37 |
| Last Modified: |
15 Aug 2019 16:37 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/37379 |
Metrics
Monthly Views for the past 3 years
Plum Analytics
Actions (login required)
 |
View Item |
![[feed]](/images/feed-icon-32x32.png){kind=icon}