Psychological and physiological factors predicting tolerability and weight loss of intragastric balloon in combination with low energy diet and group treatment in adults with obesity

This study plan focusses on predictive factors for the success of these treatments and is structured in four major areas.

1. To investigate viewpoints and perceptions of the primary health care doctors regarding obesity and to compare if they match with the viewpoints of subjects with obesity, by means of a Q-methodology study.
2. To identify baseline psychological and biological factors predicting IGB tolerability.
3. To identify psychological features that can predict effects of LED + CBT and to examine the dynamic relationships between psychological variables and weight outcomes.
4. To identify psychological and gastrointestinal (GI) symptom features predicting effects of LED + CBT + IGB and to examine the dynamic relationships between psychological variables, GI symptoms and weight outcomes.