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The Impact of Weight on Quality of Life Questionnaire

  • J. Manwaring
  • D. Wilfley

Abstract:

Obesity is a complex disease with a multifactorial etiology that is reaching epidemic proportions worldwide. Assessments are needed to adequately capture the decrements in health and psychosocial well-being that are so often observed in  obese individuals. Accordingly, researchers are realizing the importance of quality of life as a measure of health status and weight loss treatment outcome in obese individuals. While weight loss is the primary outcome of interest for most obesity treatments, measuring quality of life is a vital component as individuals evaluate their treatment outcome. The Impact of Weight on Quality of Life (IWQOL) questionnaire is the first questionnaire developed to specifically assess the effects of obesity on health-related quality of life. The psychometric properties of the IWQOL are excellent, but given its length, a briefer version was developed, the Impact of Weight on Quality of Life-Lite Questionnaire (IWQOL-Lite). The five identified scales (Physical Function, Self-Esteem, Sexual Life, Public Distress, and Work) and the Total score have demonstrated excellent  reliability (0.90–0.94 for the scales, 0.96 for Total score),  validity, and utility with various groups of obese individuals. In this chapter, the rationale for the development of an obese-specific quality of life measure will be briefly reviewed, followed by the background and development of the IWQOL and IWQOL-Lite (including their psychometric properties), weight loss research using these instruments, and future research directions. It is concluded that the IWQOL-Lite is a reliable, valid instrument that can be utilized in various obese populations, and may be particularly useful as a treatment outcome measure.

Keywords

Obese Individual Sexual Life Binge Eating Disorder Gastric Bypass Surgery Modest Weight Loss 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of Abbreviations:

BAROS

Bariatric analysis and reporting outcome system

BED

Binge eating disorder

BMI

 Body mass index (kg/m2)

DDFC

Duke University Diet and Fitness Center

HRQOL

Health-related quality of life

IWQOL

 Impact of Weight on Quality of Life questionnaire

IWQOL-Lite

 Impact of Weight on Quality of Life-Lite questionnaire

SF-36

Medical Outcomes Study Short-Form Health Survey

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Copyright information

© Springer Science+Business Media LLC 2010

Authors and Affiliations

  • J. Manwaring
  • D. Wilfley

There are no affiliations available

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