Progressive transformation of disease profiles in the world can be partially explained by the existence of chronic diseases, as they are responsible for a large part of the worldwide morbidity and mortality rates, thus becoming pandemics.One of the diseases recognized as a public health problem is chronic renal failure (CRF) because of the negative impact it has on the health and health-related quality of life (HRQOL) of its sufferers (Atkins, 2005a(Atkins, , 2005b)).The concept of HRQOL is still inaccurate because it has been approached from a variety of disciplines such as philosophy, economics, medicine, sociology, public health, politics, ethics, etc. (Cardona & Agudelo, 2005).According to the World Health Organization (WHO), HRQOL is the "individual's perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards and concerns."(WHO, 2002) This concept includes physical and psychological aspects as well as the degree of independence, social relationships, environment and spirituality (Cardona et al., 2003).The approximately four hundred instruments for measuring HRQOL (Cardona & Agudelo, 2005) can be grouped into four categories: the ones that measure HRQOL in terms of its global definition, the ones using component-oriented approaches, those which focus on one component, and the combinations of any of the above (Fleury & Lana Da Costa, 2004).The relationship between HRQOL in CRF patients and the treatment after renal failure has been studied repeatedly (