Halo Effect for Bariatric Surgery Full Text
JAMA Surgery, 11/03/2011
Woodard GA et al. – Gastric bypass surgery may render an additional benefit of weight loss and improved healthy behavior for bariatric patients' family members.Methods
- Prospective, longitudinal, and multidimensional health assessment before and 1 year after index Roux-en-Y gastric bypass surgery.
- Eighty-five participants (35 patients, 35 adult family members, and 15 children <18 years old) were enrolled in the study.
- The intervention were Roux-en-Y gastric bypass surgery and associated dietary and lifestyle counseling.
- Primary outcomes were weight and expected body mass index (calculated as weight in kilograms divided by height in meters squared).
- Secondary outcomes were waist circumference, quality of life (36-Item Short Form or Pediatric Quality of Life Inventory), healthy behaviors, eating behaviors, and activity levels.
- Participants were grouped by relationship to patient for analysis with paired 2-sample t tests.
- Before the operation, 60% of adult family members and 73% of children of patients undergoing Roux-en-Y gastric bypass surgery were obese.
- At 12 months after the operation, significant weight loss was observed in obese adult family members (from 234 to 226 lb; P = .01).
- There was a trend for obese children to have a lower body mass index than expected for their growth curve (31.2 expected vs 29.6 observed; P = .07).
- Family members increased their daily activity levels (adults, from 8 to 17 metabolic equivalent task-hours, P = .005; and children, from 13 to 22, P = .04).
- Adult family members also had improved eating habits with less uncontrollable eating (from 35 to 28; P = .01), emotional eating (from 36 to 28; P = .04), and alcohol consumption (from 11 drinks per month to 1 drink per month; P = .009).