Impact of diagnosis of diabetes on health-related quality of life among high risk individuals: the Diabetes Prevention Program outcomes study
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The purpose of this study is to assess if diagnosis of type 2 diabetes affected health-related quality of life (HRQoL) among participants in the Diabetes Prevention Program/Diabetes Prevention Program Outcome Study and changes with treatment or diabetes duration.
3,210 participants with pre-diabetes were randomized to metformin (MET), intensive lifestyle intervention (ILS), or placebo (PLB). HRQoL was assessed using the SF-36 including: (1) 8 SF-36 subscales; (2) the physical component (PCS) and mental component summary (MCS) scores; and (3) the SF-6D. The sample was categorized by diabetes free versus diagnosed. For diagnosed subgroup, mean scores in the diabetes-free period, at 6 months, 2, 4 and 6 years post-diagnosis, were compared.
PCS and SF-6D scores declined in all participants in all treatment arms (P < .001). MCS scores did not change significantly in any treatment arm regardless of diagnosis. ILS participants reported a greater decrease in PCS scores at 6 months post-diagnosis (P < .001) and a more rapid decline immediately post-diagnosis in SF-6D scores (P = .003) than the MET or PLB arms. ILS participants reported a significant decrease in the social functioning subscale at 6 months (P < .001) and two years (P < .001) post-diagnosis.
Participants reported a decline in measures of overall health state (SF-6D) and overall physical HRQoL, whether or not they were diagnosed with diabetes during the study. There was no change in overall mental HRQoL. Participants in the ILS arm with diabetes reported a more significant decline in some HRQoL measures than those in the MET and PLB arms that developed diabetes.
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- Impact of diagnosis of diabetes on health-related quality of life among high risk individuals: the Diabetes Prevention Program outcomes study
Quality of Life Research
Volume 23, Issue 1 , pp 75-88
- Cover Date
- Print ISSN
- Online ISSN
- Springer International Publishing
- Additional Links
- Diagnosis of diabetes
- Health-related quality of life
- Type 2 diabetes mellitus
- Industry Sectors
- Author Affiliations
- 1. Indiana University School of Medicine, Indianapolis, IN, USA
- 2. DPP Coordinating Center, The Biostatistics Center, George Washington University, 6110 Executive Blvd., Suite 750, Rockville, MD, 20852, USA
- 3. Department of Family Medicine, University of California, San Diego, CA, USA
- 4. Centers for Disease Control and Prevention, Atlanta, GA, USA
- 5. Northern Navajo Medical Center, Shiprock, NM, USA
- 6. University of Miami Miller School of Medicine, Miami VAHS GRECC, FL, USA
- 7. Department of Medicine, Northwestern University, Chicago, IL, USA
- 8. University of Texas Health Science Center, San Antonio, TX, USA
- 9. Departments of Medicine and Pediatrics, The Johns Hopkins School of Medicine, Baltimore, MD, USA