1 Division of Rehabilitation Sciences, The University of Texas Medical Branch , Galveston, Texas.
2 Department of Behavioral Science, The University of Texas MD Anderson Cancer Center , Houston, Texas.
J Adolesc Young Adult Oncol. 2016 Sep;5(3):278-85. doi: 10.1089/jayao.2015.0058. Epub 2016 Apr 4.
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.
青少年和年轻成人（AYA）中枢神经系统（CNS）肿瘤幸存者是一个研究不足的人群，他们有发生不良健康后果的风险，如肥胖。长期随访指南建议监测有肥胖风险的人群，因此需要一个饮食行为问卷。已经开发了一个简短的在线版三因素饮食问卷（TFEQ-R18v2），但其在该人群中的适用性尚不清楚。本研究旨在调查该人群中该工具的因子结构和可靠性。
15-39 岁的 AYA 中枢神经系统肿瘤幸存者（n=114）在线完成 TFEQ-R18V2 问卷。验证性因子分析用于检验三因素结构（不可控饮食、认知约束和情绪性饮食[EE]）和可靠性（TFEQ-R18v2 的内部一致性）的拟合度。线性回归评估了三个因素与体重指数（BMI）之间的关联。
理论上的三因素结构在我们的人群中得到了支持（RMSEA=0.056，CFI=0.98），并表现出良好的可靠性（α值为 0.81-0.93）。EE（β=0.07，95%CI 0.02-0.13）与 BMI 呈正相关，而其他两个分量表得分则没有。
TFEQ-R18v2 工具在 AYA 中枢神经系统肿瘤幸存者的研究和临床应用中具有潜力。该工具可能是研究人员制定针对性体重管理策略的有用工具。它也可能是临床医生监测有肥胖风险的幸存者并促进转介的有价值工具。我们的研究结果还表明，该人群中的 EE 应作为干预的潜在目标进一步研究。
