Diabetes Care, Vol 21, Issue 11 1876-1885, Copyright © 1998 by American Diabetes Association
Determinants of the quality of life of patients with diabetes under intensified insulin therapy
M Rose, U Burkert, G Scholler, T Schirop, G Danzer and BF Klapp
Department of Psychosomatic Medicine and Psychotherapy, Medical Clinic and Policlinic, Charite Campus-Virchow, Humboldt University, Berlin, Germany. rose@charite.de
OBJECTIVE: The concept of quality of life (QOL) is understood as a
multidimensional construct made up of physiological, psychological, and
social aspects, but their particular weightings for the global QOL are
rarely investigated. We examined 1) the general QOL of patients with
diabetes, 2) the significance of the individual QOL aspects for the overall
assessment of QOL, and 3) the modulating function of coping mechanism and
particular personality traits. RESEARCH DESIGN AND METHODS: A total of 116
diabetes patients under intensified insulin therapy were studied, as were
107 patients with inflammatory bowel disease, 66 patients with chronic
hepatitis C, and 229 students who served as control subjects. The
examination was based on eight standardized QOL and personality
questionnaires (354 items) and assessed by means of linear structural
regression models (AMOS 3.6). RESULTS: The QOL of diabetes patients appears
to be higher than the QOL of other chronically ill patients. Social,
psychological, and physical aspects contribute to the overall QOL, although
physical complaints receive a comparatively low weighting. Coping behavior
and particular personality traits covary with all QOL aspects, giving these
variables greater significance for the QOL than the existence of secondary
illnesses. CONCLUSIONS: The hypothesis that the various factors involved in
the multidimensional construct QOL receive different weightings was
confirmed, making a simple summary score for the general QOL appear
unjustifiable. In addition, all aspects that are commonly understood as
parameters of QOL are influenced by external factors, such as coping
behavior, based on individual personality characteristics.