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Assessing the effect of weight and weight loss in obese persons with type 2 diabetes

Authors Curtis B, Hayes C, Fehnel S, Zografos L

Published 14 October 2008 Volume 2008:1 Pages 13—23


Review by Single-blind

Peer reviewer comments 1

Bradley Curtis1, Risa P Hayes1, Sheri Fehnel2, Laurie Zografos2

1Global Health Outcomes, Eli Lilly and Co, Indianapolis, IN, USA; 2RTI Health Solutions, Research Triangle Park, NC, USA

Abstract: The objective of this study was to assess specific areas of life in which obesity affects individuals with type 2 diabetes mellitus (T2DM), and changes that obese persons with T2DM experience with weight loss of varying degrees. Thirty in-depth interviews were conducted in persons identified as: age ≥40 years, diagnosed with T2DM for ≥2 years, on oral antihyperglycemic medications >3 months, BMI 30–35 kg/m2, having attempted to lose weight in the last 2 years. Participants (60% female, mean age 53 years, 53% Caucasian, mean BMI 32.2 kg/m2) agreed that 5% weight loss, while not reflective of an ultimate goal, would be meaningful and important; benefits were expected to accrue in physical functioning, self-confidence, blood glucose levels, and motivation to keep losing weight. Participants reported the greatest effect of weight loss on energy, physical activity, mobility, pain, and clothes/appearance. Participants reported weight affecting mood, with feelings of depression and frustration most commonly described. This research indicates that weight loss is likely to affect health-related quality of life in obese individuals with T2DM. Given the purported weight loss benefits of many emerging diabetic medications, it will be important to include measures of weight-related quality of life in future clinical trials of these agents.

Keywords: health-related quality of life, obesity, type 2 diabetes, weight loss, patient-reported outcomes

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