DOI: 10.2337/dc07-2072
Prediction of Mortality in Type 2 Diabetes from Health Related Quality of Life (ZODIAC–4).
1Diabetes Centre, Isala Clinics, Zwolle Kleefstra{at}Langerhans.com ABSTRACT Objective: To investigate the relationship between health related quality of life (HRQOL) and mortality in type 2 diabetes. Research Design And Methods: In 1998, 1143 primary care patients with type 2 diabetes participated in the ZODIAC study. At baseline, HRQOL was assessed with the RAND-36 and after almost 6 years life status was retrieved. Cox proportional Hazard modeling was used to investigate the association between HRQOL (continuous data) and mortality, with adjustment for selected confounders (smoking, age, sex, diabetes duration, HbA1c, renal function, BMI, blood pressure, cholesterol/HDL and macrovascular complications). Results: The Physical Component Summary of the RAND-36 was inversely associated with mortality (HR: 0.979, 95%CI: 0.966 to 0.992), as were two separate RAND-36 dimensions. Conclusions: This study found that HRQOL is an independent marker of mortality and emphasizes the importance of looking beyond clinical parameters in patients with type 2 diabetes.
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