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The Impact of Bariatric Surgery Compared to Medical Therapy on Health-Related Quality of Life in Subjects with Obesity and Type 2 Diabetes Mellitus

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Abstract

Introduction

The adverse implications of obesity extend beyond physical health to include negative impact on quality of life (QoL), mood, and eating habits. While bariatric surgery provides successful weight loss and metabolic benefits, studies describe conflicting results on QoL and mood-related outcomes.

Methods

Patients (n = 140) with class II/III obesity and T2DM were recruited from 2015 to 2019, and stratified based on medical or surgical treatment. Questionnaires including the Hospital Anxiety and Depression Scale, Euro QoL visual analogue scale (EQ-VAS), and Revised 21-item Three-Factor Eating Questionnaire (TFEQ-R21) were recorded at baseline, 6 months, and 12 months after treatment.

Results

At baseline, the surgical group (n = 55) and medical group (n = 85) had no significant difference in questionnaire outcomes. At 6 and 12 months, EQ-VAS was higher in the surgical group (12 months surgical 82.00 ± 12.64, medical 72.81 ± 16.56, p = 0.001), with greater improvement from baseline. HADS-D scores at 12 months were lower in the surgical group (surgical 2.60 ± 2.88, medical 3.90 ± 3.58, p = 0.025). At 12 months, the surgical group also had better TFEQ-R21 scores, with higher cognitive restraint scores (surgical 19.09 ± 3.00, medical 16.69 ± 3.61, p < 0.001), and lower scores for uncontrolled eating (surgical 14.96 ± 3.87, medical 17.89 ± 5.34, p = 0.001).

Conclusion

In the treatment of patients with obesity and T2DM, bariatric surgery resulted in improved QoL outcomes at 12 months compared to medical therapy. This could be related to improvement in weight and metabolic outcomes, and altered gut-brain axis communication. This is the first prospective study assessing the impact of bariatric surgery on health-related QoL in Asia compared against a control group who received medical therapy.

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Authors and Affiliations

  1. Department of Endocrinology, Singapore General Hospital, Singapore, Singapore

    Sarah Ying Tse Tan, Kwang Wei Tham, Sonali Ganguly, Hong Chang Tan & Phong Ching Lee

  2. Health Services Research Unit, Singapore General Hospital, Singapore, Singapore

    Xiaohui Xin

  3. Department of Psychology, Singapore General Hospital, Singapore, Singapore

    Henry Yuen Foong Lew

  4. Department of Upper Gastrointestinal and Bariatric Surgery, Singapore General Hospital, Singapore, Singapore

    Chin Hong Lim & Jeremy Tan

  5. Division of Medicine, Singapore General Hospital, Singapore, Singapore

    Kay Yuan Chong

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  1. Sarah Ying Tse Tan
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Tan, S.Y.T., Tham, K.W., Ganguly, S. et al. The Impact of Bariatric Surgery Compared to Medical Therapy on Health-Related Quality of Life in Subjects with Obesity and Type 2 Diabetes Mellitus. OBES SURG 31, 829–837 (2021). https://doi.org/10.1007/s11695-020-05038-6

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