title: Psychometric Analysis of the Three-Factor Eating Questionnaire-R18V2 in Adolescent and Young Adult-Aged Central Nervous System Tumor Survivors.
abstract: Adolescent and young adult (AYA)-aged central nervous system (CNS) tumor survivors are an understudied population that is at risk of developing adverse health outcomes, such as obesity. Long-term follow-up guidelines recommend monitoring those at risk of obesity, thus motivating the need for an eating behavior questionnaire. An abbreviated online version of the Three-Factor Eating Questionnaire (TFEQ-R18v2) has been developed, but its applicability to this population is not yet known. This study investigated the instrument's factor structure and reliability in this population.
  
  
  
  AYA-aged CNS tumor survivors (n = 114) aged 15-39 years completed the TFEQ-R18V2 questionnaire online. Confirmatory factor analysis was used to examine the fit of the three-factor structure (uncontrollable eating, cognitive restraint, and emotional eating [EE]) and reliability (internal consistency of the TFEQ-R18v2). Associations between the three factors and body mass index (BMI) were assessed by linear regression.
  
  
  
  The theorized three-factor structure was supported in our population (RMSEA = 0.056 and CFI = 0.98) and demonstrated good reliability (α of 0.81-0.93). EE (β = 0.07, 95% CI 0.02-0.13) was positively associated with BMI, whereas the other two subscale scores were not.
  
  
  
  The TFEQ-R18v2 instrument holds promise for research and clinical use among AYA-aged CNS tumor survivors. The instrument may be a useful tool for researchers to develop tailored weight management strategies. It also may be a valuable tool for clinicians to monitor survivors who are at risk of obesity and to facilitate referral. Our results also suggest that EE in this population should be further investigated as a potential target for intervention.
authors.affiliation: 1 Division of Rehabilitation Sciences, The University of Texas Medical Branch , Galveston, Texas.
authors.forename: Maria C
authors.initials: MC
authors.lastname: Swartz
authors.affiliation: 2 Department of Behavioral Science, The University of Texas MD Anderson Cancer Center , Houston, Texas.
authors.forename: Karen M
authors.initials: KM
authors.lastname: Basen-Engquist
authors.affiliation: 3 Department of Health Promotion and Behavioral Sciences, The University of Texas Health Science Center at Houston School of Public Health, Houston, Texas.
authors.forename: Christine
authors.initials: C
authors.lastname: Markham
authors.affiliation: 1 Division of Rehabilitation Sciences, The University of Texas Medical Branch , Galveston, Texas.
authors.forename: Elizabeth J
authors.initials: EJ
authors.lastname: Lyons
authors.affiliation: 2 Department of Behavioral Science, The University of Texas MD Anderson Cancer Center , Houston, Texas.
authors.forename: Matthew
authors.initials: M
authors.lastname: Cox
authors.affiliation: 4 Division of Pediatrics, The University of Texas MD Anderson Cancer Center , Houston, Texas.
authors.forename: Joya
authors.initials: J
authors.lastname: Chandra
authors.affiliation: 4 Division of Pediatrics, The University of Texas MD Anderson Cancer Center , Houston, Texas.
authors.forename: Joann L
authors.initials: JL
authors.lastname: Ater
authors.affiliation: 4 Division of Pediatrics, The University of Texas MD Anderson Cancer Center , Houston, Texas.
authors.forename: Martha A
authors.initials: MA
authors.lastname: Askins
authors.affiliation: 5 Department of Pediatrics, Baylor College of Medicine , Houston, Texas.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Scheurer
authors.affiliation: 5 Department of Pediatrics, Baylor College of Medicine , Houston, Texas.
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Lupo
authors.affiliation: 6 Department of Hematology & Oncology, Cook Children's Medical Center , Fort Worth, Texas.
authors.forename: Rachel
authors.initials: R
authors.lastname: Hill
authors.affiliation: 6 Department of Hematology & Oncology, Cook Children's Medical Center , Fort Worth, Texas.
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Murray
authors.affiliation: 7 Department of Biostatistics, The University of Texas Health Science Center at Houston School of Public Health , Houston, Texas.
authors.forename: Wenyaw
authors.initials: W
authors.lastname: Chan
authors.affiliation: 3 Department of Health Promotion and Behavioral Sciences, The University of Texas Health Science Center at Houston School of Public Health, Houston, Texas.
authors.forename: Paul R
authors.initials: PR
authors.lastname: Swank
mesh_terms: D000293:Adolescent; D000328:Adult; D016543:Central Nervous System Neoplasms / Q000401:mortality*; D003430:Cross-Sectional Studies; D004435:Eating / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011594:Psychometrics / Q000379:methods*; D011795:Surveys and Questionnaires; D017741:Survivors; D055815:Young Adult
keywords: cancer care continuum; central nervous system (CNS) tumor; diet; prevention; survivorship