Accuracy of Body Size Estimation in Youth with Cystic Fibrosis and Association with Health-Related Quality of Life
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Accuracy of Body Size Estimation in Youth with Cystic Fibrosis and Association with Health‑Related Quality of Life Stacey L. Simon1 · Kaitlyn A. Ferris2 · Kristine Durkin3 · Kristin Riekert4 · Christina Duncan3
© Springer Science+Business Media, LLC, part of Springer Nature 2019
Abstract Accuracy of body size estimation may impact motivation to adhere to treatment recommendations and health-related quality of life (HRQOL) in youth with cystic fibrosis (CF), but this has not yet been investigated. Thus, the goal of the current study was to examine accuracy of body size estimation in youth with CF, and associations with HRQOL, lung functioning, and dietary intake. Fifty-four youth diagnosed with CF (M = 13.61 years) completed the Figure Rating Scale, the Cystic Fibrosis Questionnaire–Revised, and a 24-h diet recall interview. Cohen’s Weighted Kappa Coefficient evaluated agreement between body size estimation and BMI percentile. Binary logistic regression analyses examined associations between body size accuracy and HRQOL, lung functioning, and dietary intake. A less than adequate agreement was found between youth body size estimation and BMI percentile. Most participants overestimated body size (69.8%). Body Image HRQOL, but neither lung functioning nor dietary intake, was significantly associated with body size estimation accuracy. Working with patients to improve perceptions of body size may also improve HRQOL scores and allow for discussion about treatment goals related to body size. Keywords Cystic fibrosis · Adolescents · Body image · Nutrition · Adherence
Introduction Gaining or maintaining weight and high energy and fat intake are integral components of the cystic fibrosis (CF) treatment regimen. Nutritional status is a prognostic factor in CF survival, yet nearly half of youth with CF fail to meet dietary intake recommendations (Calvo-Lerma et al., 2017). Indeed, children with diet-treated chronic illnesses such as CF are at greater risk for disordered eating behaviors * Stacey L. Simon [email protected] 1
Department of Pediatrics, Division of Pulmonary Medicine, University of Colorado Anschutz Medical Campus, and Children’s Hospital Colorado, 13123 East 16th Avenue Box B395, Aurora, CO 80045, USA
2
Outlier Research & Evaluation, UChicago STEM Education, University of Chicago, Chicago, USA
3
Department of Psychology, West Virginia University, Morgantown, WV, USA
4
Division of Pulmonary & Critical Care Medicine, Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
and unhealthy weight-management practices, which in turn increases risk for poor health outcomes (Conviser, Fisher, & McColley, 2018). Body perception or body size accuracy has been associated with weight-related behaviors such as dietary intake and quality of life in healthy adolescents, as well as adolescents with eating disorders, and with overweight/ obesity (Christoph, Jarrett, Gower, & Borowsky, 2018; Xu, Cohen, Greaney & Greene, 2018), but such correlates have not been investigated in you
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