Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2022
The relationship of presurgical Personality Assessment Inventory scales to BMI following bariatric surgery.
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Hoyt Tim, Walter Fawn A
Аннотация
OBJECTIVE: Notwithstanding the efficacy of bariatric surgery in reducing the negative sequelae of obesity, psychological factors may play a significant role in long-term weight maintenance following surgery. Previous research on these factors has shown mixed outcomes, indicating the need for further study in samples undergoing bariatric surgery.
METHOD: This study evaluated archival data for 194 patients from a single-payer system for a 60-month period following bariatric surgery to examine how presurgical scores on the Personality Assessment Inventory predict body mass index (BMI) over time. Follow-up data was available on 97% of these patients at 12 months and 62% of these patients at 60 months. Hierarchical linear modeling was used to predict BMI based on demographic and psychopathology factors using linear and nonlinear coefficients while controlling for initial BMI.
RESULTS: Results showed that Personality Assessment Inventory scales assessing anxiety-related disorders, mania, and alcohol problems showed a relationship to BMI outcomes over time. Contrary to expectations, moderate elevations on anxiety-related disorders and mania were associated with a greater initial linear trend for BMI decrease, with a steeper slope for weight regain after approximately 3 years. Patients endorsing any scores above the minimum on the alcohol problems scale showed poorer BMI outcomes.
CONCLUSIONS: This study extends previous research on psychological factors and weight outcomes over time among patients undergoing bariatric surgery. In contrast to a focus on clinical elevations when using broadband measures of psychopathology, these results suggest a more nuanced pattern of weight loss and subsequent regain associated with certain subclinical elevations. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
METHOD: This study evaluated archival data for 194 patients from a single-payer system for a 60-month period following bariatric surgery to examine how presurgical scores on the Personality Assessment Inventory predict body mass index (BMI) over time. Follow-up data was available on 97% of these patients at 12 months and 62% of these patients at 60 months. Hierarchical linear modeling was used to predict BMI based on demographic and psychopathology factors using linear and nonlinear coefficients while controlling for initial BMI.
RESULTS: Results showed that Personality Assessment Inventory scales assessing anxiety-related disorders, mania, and alcohol problems showed a relationship to BMI outcomes over time. Contrary to expectations, moderate elevations on anxiety-related disorders and mania were associated with a greater initial linear trend for BMI decrease, with a steeper slope for weight regain after approximately 3 years. Patients endorsing any scores above the minimum on the alcohol problems scale showed poorer BMI outcomes.
CONCLUSIONS: This study extends previous research on psychological factors and weight outcomes over time among patients undergoing bariatric surgery. In contrast to a focus on clinical elevations when using broadband measures of psychopathology, these results suggest a more nuanced pattern of weight loss and subsequent regain associated with certain subclinical elevations. (PsycInfo Database Record (c) 2022 APA, all rights reserved).