Assessing weight-related quality of life in adolescents.

Published

Journal Article

OBJECTIVE: The development of a new weight-related measure to assess quality of life in adolescents [Impact of Weight on Quality of Life (IWQOL)-Kids] is described. RESEARCH METHODS AND PROCEDURES: Using a literature search, clinical experience, and consultation with pediatric clinicians, 73 items were developed, pilot tested, and administered to 642 participants, 11 to 19 years old, recruited from weight loss programs/studies and community samples (mean z-BMI, 1.5; range, -1.2 to 3.4; mean age, 14.0; 60% female; 56% white). Participants completed the 73 items and the Pediatric Quality of Life Inventory and were weighed and measured. RESULTS: Four factors (27 items) were identified (physical comfort, body esteem, social life, and family relations), accounting for 71% of the variance. The IWQOL-Kids demonstrated excellent psychometric properties. Internal consistency coefficients ranged from 0.88 to 0.95 for scales and equaled 0.96 for total score. Convergent validity was demonstrated with strong correlations between IWQOL-Kids total score and the Pediatric Quality of Life Inventory (r = 0.76, p < 0.0001). Significant differences were found across BMI groups and between clinical and community samples, supporting the sensitivity of this measure. Participants in a weight loss camp demonstrated improved IWQOL-Kids scores, suggesting responsiveness of the IWQOL-Kids to weight loss/social support intervention. DISCUSSION: The present study provides preliminary evidence regarding the psychometric properties of the IWQOL-Kids, a weight-related quality of life measure for adolescents. Given the rise of obesity in youth, the development of a reliable and valid weight-related measure of quality of life is timely.

Full Text

Duke Authors

Cited Authors

  • Kolotkin, RL; Zeller, M; Modi, AC; Samsa, GP; Quinlan, NP; Yanovski, JA; Bell, SK; Maahs, DM; de Serna, DG; Roehrig, HR

Published Date

  • March 2006

Published In

Volume / Issue

  • 14 / 3

Start / End Page

  • 448 - 457

PubMed ID

  • 16648616

Pubmed Central ID

  • 16648616

International Standard Serial Number (ISSN)

  • 1930-7381

Digital Object Identifier (DOI)

  • 10.1038/oby.2006.59

Language

  • eng

Conference Location

  • United States