Abstract P125: Eating Behaviour Profiles of Severely Obese People Differ in Regard to Gender and Hypertension Status
INTRODUCTION: The prevalence of severe obesity has tripled in Canada in the past few decades. Nevertheless, cognitions and eating behaviours in this population have not been extensively studied as for their relationships with anthropometric characteristics and comorbidities. Therefore, the aim of this study was to link 3 factors related to cognitions and eating behaviours: restraint, disinhibition and susceptibility to hunger, according to gender, body composition and hypertension (HTA) status.
HYPOTHESIS: Cognitive and behavioural profiles of severely obese people differ in regard to gender and HTA status.
METHODS: A total of 125 severely obese people [Body Mass Index (BMI) of ≥ 40 or ≥ 35 kg/m2 with comorbidities] were recruited through the bariatric surgery clinic of our institution. They were invited to complete a validated French version of the Three-Factor Eating Questionnaire (51-items). Weight, fat-free mass, and body fat mass of participants were measured using a bioelectric impedance balance and HTA status was recorded.
RESULTS: Participants were 41 ± 10 years, weighted 133.9 ± 27.4 kg with a BMI of 48.7 ± 7.6 kg/m2, a lean mass of 66.0 ± 14.1 kg, a fat mass of 32.6 ± 17.9 kg and a fat percentage of 50.3 ± 5.7%. Age and BMI were similar between men and women, but men’s weight, body fat, and fat-free mass were higher than in women. In the entire cohort, a negative correlation was observed between susceptibility to hunger and fat mass (r=-0.273; p=0.035). In men, positive correlations were observed between restraint vs. weight (r=0.394; p=0.016) and BMI (r=0.459; p=0.004). In women, negative correlations were observed between restraint vs. weight (r=-0.215; p=0.044) and lean mass (r=-0.278; p=0.009), while positive correlations were observed between disinhibition vs. weight (r=0.211; p=0.049) and fat mass (r=0.215; p=0.044). Overall, 56% (70/125) of all participants showed HTA. A greater proportion of participants with a higher restraint score suffered from HTA than in participants presenting a lower restraint score (67 vs. 48%; p=0.027). Restraint profile also differed between women suffering with HTA vs. without HTA (p=0.008). A greater proportion of participants showing a lower disinhibition score suffered from HTA than those with a higher disinhibition score (64 vs. 48%; p=0.051).
CONCLUSION: Higher score of susceptibility to hunger observed in severely obese individuals is linked to a lower body fat mass. Despite similar eating behaviour profiles, different associations coexist according to gender between restraint vs. disinhibition factors and anthropometric characteristics. Among women, those suffering with HTA present a higher level of restraint, but lower disinhibition score. These findings in severely obese people differ from actual literature in overweight and obese people.
- © 2012 by American Heart Association, Inc.