Health-Related Quality of Life and Treatment Satisfaction in Dutch Patients With Type 2 Diabetes

Health-Related Quality of Life and Treatment Satisfaction in Dutch Patients With Type 2 Diabetes W. Ken Redekop , PHD 1 , Marc A. Koopmanschap , PHD 1 , Ronald P. Stolk , MD, PHD 2 , Guy E.H.M. Rutten , MD, PHD 2 , Bruce H.R. Wolffenbuttel , MD, PHD 3 and Louis W. Niessen , MD 1 1 Institute for Medical Technology Assessment (iMTA), Erasmus University, Rotterdam, the Netherlands 2 Julius Center for General Practice and Patient-Oriented Research, University Medical Center, Utrecht, the Netherlands 3 Academic Center Maastricht, Maastricht, the Netherlands Abstract OBJECTIVE — To estimate the health-related quality of life (HRQOL) and treatment satisfaction for patients with type 2 diabetes in the Netherlands and to examine which patient characteristics are associated with quality of life and treatment satisfaction. RESEARCH DESIGN AND METHODS —For a sample of 1,348 type 2 diabetes patients, recruited by 29 general practitioners, we collected data regarding HRQOL. This study was performed as part of a larger European study (Cost of Diabetes in Europe - Type 2 [CODE-2]). We used a generic instrument (Euroqol 5D) to measure HRQOL. Treatment satisfaction was assessed using the Diabetes Treatment Satisfaction Questionnaire. RESULTS —Patients without complications had an HRQOL (0.74) only slightly lower than similarly aged persons in the general population. Insulin therapy, obesity, and complications were associated with a lower HRQOL, independent of age and sex. Although higher fasting blood glucose and HbA 1c levels were negatively associated with HRQOL, these factors were not significant after adjustment for other factors using multivariate analysis. Overall treatment satisfaction was very high. Younger patients, patients using insulin, and patients with higher HbA 1c levels were less satisfied with the treatment than other patients. CONCLUSIONS —Obesity and the presence of complications are important determinants of HRQOL in patients with type 2 diabetes. CODE-2, Cost of Diabetes in Europe - Type 2 DTSQ, Diabetes Treatment Satisfaction Questionnaire HRQOL, health-related quality of life VAS, visual analog scale Footnotes Address correspondence and reprint requests to Ken Redekop, Institute for Medical Technology Assessment, Erasmus University Rotterdam, P.O. Box 1738, 3000 DR Rotterdam, the Netherlands.E-mail: redekop{at}bmg.eur.nl . Received for publication 20 July 2001 and accepted in revised form 7 November 2001. A table elsewhere in this issue shows convent