title: Evaluation of intelligence in an adolescent bariatric population.
abstract: BACKGROUND
  The use of bariatric surgery as treatment for morbid obesity in adolescents has nearly tripled in recent years. Intelligence is an important component to a patient's assent of surgery and maintenance of a healthy lifestyle. The objective of this study was to describe the intelligence testing performance of a cohort of adolescents seeking laparoscopic adjustable gastric banding (LAGB). Twenty-nine patients (93% female, 62% white) with a mean age of 16 years and mean body mass index (BMI) of 49 kg/m(2) were enrolled in an adolescent bariatric program in the United States.
  
  
  METHODS
  We conducted a cross-sectional analysis, evaluating patient intelligence at a single preoperative time point using the Weschler Intelligence Scale for Children-IV or Weschler Adult Intelligence Scale-IV. Intelligence quotient (IQ) scores were analyzed descriptively and in relationship to patient anthropometric measurements and characteristics.
  
  
  RESULTS
  Mean IQ was average for age (95, SD 16), although 21% of patients had an IQ<80 and no patients had an IQ>120. There was no significant association between IQ and BMI, weight, or waist circumference. Mean IQ was lower in patients who had failed a grade compared with those who had not failed a grade (P<.01) and in patients whose parents had not graduated college compared with those whose parents had (P< .05).
  
  
  CONCLUSIONS
  In our cohort of adolescents seeking LAGB, mean IQ was average for age, suggesting capability to understand the procedure and healthy lifestyle concepts. Patients who exhibit deficits in intellect prior to surgery may benefit from educational resources and clinician support tailored to their reasoning abilities.
authors.affiliation: Department of Pediatrics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware 19803, USA. tphan@nemours.org
authors.forename: Thao-Ly T
authors.initials: TL
authors.lastname: Phan
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Curran
authors.forename: George A
authors.initials: GA
authors.lastname: Datto
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D001835:Body Weight; D003430:Cross-Sectional Studies; D005260:Female; D015391:Gastroplasty / Q000523:psychology*; D006801:Humans; D007360:Intelligence / Q000502:physiology*; D007361:Intelligence Tests; D008297:Male; D009767:Obesity, Morbid / Q000523:psychology* / Q000601:surgery