The study used the QWB-SA to explore the relationship between measures of glycemia and health-related quality of life. Glycemia was measured with self-reported frequency of symptomatic hypoglycemia and hyperglycemia, and HbA1c. HRQOL and health utility scores were assessed with the QWB-SA.
As described in the study methods, the sample "included 1522 patients: 634 with type 1 diabetes and 888 with type 2 diabetes who attended endocrinology, diabetes, and ophthalmology clinics at the University of Michigan Health System between June 29,1998 and March 15,2001 and had HbA1c measurements on the day of the visit. All patients were over 18 years of age or older, able to give informed consent, and able to either self-administer the questionnaires or, if visually impaired, to respond to a research assistant reading the questionnaires"
1. Tabaei BP, Shill-Novak J, Brandle M, Burke R, Kaplan RM, Herman WH. Glycemia and the quality of well-being in patients with diabetes, Quality of Life Research (in press).
2. Coffey JT, Brandle M, Zhou H, Marriott D, Burke R, Tabaei BP, Engelgau MM, Kaplan RM, Herman WH. Valuing health-related quality of life in diabetes. Diabetes Care. 2002 Dec;25(12):2238-43.
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