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Health-related Quality of Life of Patients with Generalized Anxiety Disorder

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    Aims: To analyze the health-related quality of life of patients with Generalized Anxiety Disorder (GAD), with respect to the population at large and to a control group. The following goals are addressed: 1.- To determine what, if any, differences exist between the health status of patients diagnosed with GAD, the population in general and a group of control patients; 2.- To analyze the relation between the variables age, sex, and health status (as assessed by the patient's GP) measured on the Hamilton anxiety scale, with the quality of life of the GAD patients and of the control group; 3.- To determine whether the variables age, sex, Hamilton scale values and index of quality of life influence the annual cost caused by the illness; 4.- To determine whether there are any differences in the evaluation of the same health status made by GAD patients and by the general population. This study forms part of a broader- ranging one (the ANCORA Study) set up to analyze Generalized Anxiety Disorder (GAD) and the costs and other burdens provoked by this illness in Spain. Material and Methods: Regression models were used to obtain the EQ-5D index ofhealth state (EQindex) and to analyze the above-mentioned variables. The data on patients and on the costs of the illness are those registered in the ANCORA study. Results: The patients with GAD present a self-perceived level of health (EQ-5D) that is conspicuously below that corresponding to the general population, especially in three of the dimensions, namely usual activities, pain/discomfort and anxiety/depression. The mean value of the health index (EQindex) is ten points below that of the general population and that of the control group. Age was found to be negatively related to the health variables, as was a higher score on the Hamilton scale. For the group of patients with GAD, a worse perceived health state and a higher score on the Hamilton scale were associated with higher costs, although in the latter case the explicative power of the model is weak. Finally, the GAD patients assessed their health status more negatively than did the general population, with a visual analogue scale (VAS) result that was four points lower than that made by the general population.

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    Paper provided by Departamento de Economía - Universidad Pública de Navarra in its series Documentos de Trabajo - Lan Gaiak Departamento de Economía - Universidad Pública de Navarra with number 0803.

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    Length: pages
    Date of creation: 2008
    Publication status: Published in
    Handle: RePEc:nav:ecupna:0803
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